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Finding the Fourth Proportional to 657.39, 907.11 and 362.68

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Solution

The fourth proportional to 657.39, 907.11 and 362.68 is: 500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.39 : 907.11 = 362.68 : x
  2. Step 2: Convert to fraction form
    657.39/907.11 = 362.68/x
  3. Step 3: Cross multiply
    657.39x = 907.11 × 362.68
  4. Step 4: Simplify right side
    657.39x = 328,986.12
  5. Step 5: Solve for x
    x = 328,986.12/657.39
  6. Step 6: Final answer
    x = 500.44

Related Problems

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Double scale
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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.