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Finding the Fourth Proportional to 248,505.50, 372,616.08 and 115,317.20

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Solution

The fourth proportional to 248,505.50, 372,616.08 and 115,317.20 is: 172,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,505.50 : 372,616.08 = 115,317.20 : x
  2. Step 2: Convert to fraction form
    248,505.50/372,616.08 = 115,317.20/x
  3. Step 3: Cross multiply
    248,505.50x = 372,616.08 × 115,317.20
  4. Step 4: Simplify right side
    248,505.50x = 42,969,043,020.58
  5. Step 5: Solve for x
    x = 42,969,043,020.58/248,505.50
  6. Step 6: Final answer
    x = 172,909.83

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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.