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Finding the Fourth Proportional to 557.22, 763.96 and 547.35

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Solution

The fourth proportional to 557.22, 763.96 and 547.35 is: 750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.22 : 763.96 = 547.35 : x
  2. Step 2: Convert to fraction form
    557.22/763.96 = 547.35/x
  3. Step 3: Cross multiply
    557.22x = 763.96 × 547.35
  4. Step 4: Simplify right side
    557.22x = 418,153.51
  5. Step 5: Solve for x
    x = 418,153.51/557.22
  6. Step 6: Final answer
    x = 750.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.