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Finding the Fourth Proportional to 657.32, 907.25 and 373.80

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Solution

The fourth proportional to 657.32, 907.25 and 373.80 is: 515.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.32 : 907.25 = 373.80 : x
  2. Step 2: Convert to fraction form
    657.32/907.25 = 373.80/x
  3. Step 3: Cross multiply
    657.32x = 907.25 × 373.80
  4. Step 4: Simplify right side
    657.32x = 339,128.18
  5. Step 5: Solve for x
    x = 339,128.18/657.32
  6. Step 6: Final answer
    x = 515.93

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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.