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Finding the Fourth Proportional to 657.42, 907.24 and 362.70

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Solution

The fourth proportional to 657.42, 907.24 and 362.70 is: 500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.42 : 907.24 = 362.70 : x
  2. Step 2: Convert to fraction form
    657.42/907.24 = 362.70/x
  3. Step 3: Cross multiply
    657.42x = 907.24 × 362.70
  4. Step 4: Simplify right side
    657.42x = 329,055.95
  5. Step 5: Solve for x
    x = 329,055.95/657.42
  6. Step 6: Final answer
    x = 500.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.