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Finding the Fourth Proportional to 657.48, 907.14 and 373.89

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Solution

The fourth proportional to 657.48, 907.14 and 373.89 is: 515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.48 : 907.14 = 373.89 : x
  2. Step 2: Convert to fraction form
    657.48/907.14 = 373.89/x
  3. Step 3: Cross multiply
    657.48x = 907.14 × 373.89
  4. Step 4: Simplify right side
    657.48x = 339,170.57
  5. Step 5: Solve for x
    x = 339,170.57/657.48
  6. Step 6: Final answer
    x = 515.86

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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.