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Finding the Fourth Proportional to 528,080.30, 792,120.45 and 248,144.30

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Solution

The fourth proportional to 528,080.30, 792,120.45 and 248,144.30 is: 372,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,080.30 : 792,120.45 = 248,144.30 : x
  2. Step 2: Convert to fraction form
    528,080.30/792,120.45 = 248,144.30/x
  3. Step 3: Cross multiply
    528,080.30x = 792,120.45 × 248,144.30
  4. Step 4: Simplify right side
    528,080.30x = 196,560,174,580.94
  5. Step 5: Solve for x
    x = 196,560,174,580.94/528,080.30
  6. Step 6: Final answer
    x = 372,216.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.