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Finding the Fourth Proportional to 637.24, 955.52 and 345.10

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Solution

The fourth proportional to 637.24, 955.52 and 345.10 is: 517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.24 : 955.52 = 345.10 : x
  2. Step 2: Convert to fraction form
    637.24/955.52 = 345.10/x
  3. Step 3: Cross multiply
    637.24x = 955.52 × 345.10
  4. Step 4: Simplify right side
    637.24x = 329,749.95
  5. Step 5: Solve for x
    x = 329,749.95/637.24
  6. Step 6: Final answer
    x = 517.47

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Double scale
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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.