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Finding the Fourth Proportional to 657.96, 907 and 552.25

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Solution

The fourth proportional to 657.96, 907 and 552.25 is: 761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.96 : 907 = 552.25 : x
  2. Step 2: Convert to fraction form
    657.96/907 = 552.25/x
  3. Step 3: Cross multiply
    657.96x = 907 × 552.25
  4. Step 4: Simplify right side
    657.96x = 500,890.75
  5. Step 5: Solve for x
    x = 500,890.75/657.96
  6. Step 6: Final answer
    x = 761.28

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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.