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Finding the Fourth Proportional to 657.32, 907.10 and 362.58

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Solution

The fourth proportional to 657.32, 907.10 and 362.58 is: 500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.32 : 907.10 = 362.58 : x
  2. Step 2: Convert to fraction form
    657.32/907.10 = 362.58/x
  3. Step 3: Cross multiply
    657.32x = 907.10 × 362.58
  4. Step 4: Simplify right side
    657.32x = 328,896.32
  5. Step 5: Solve for x
    x = 328,896.32/657.32
  6. Step 6: Final answer
    x = 500.36

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1.5x scale

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.