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Finding the Fourth Proportional to 500.17, 750.25 and 153.50

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Solution

The fourth proportional to 500.17, 750.25 and 153.50 is: 230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.17 : 750.25 = 153.50 : x
  2. Step 2: Convert to fraction form
    500.17/750.25 = 153.50/x
  3. Step 3: Cross multiply
    500.17x = 750.25 × 153.50
  4. Step 4: Simplify right side
    500.17x = 115,159.24
  5. Step 5: Solve for x
    x = 115,159.24/500.17
  6. Step 6: Final answer
    x = 230.24

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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.