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Finding the Fourth Proportional to 555.53, 761.06 and 534.76

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Solution

The fourth proportional to 555.53, 761.06 and 534.76 is: 732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.53 : 761.06 = 534.76 : x
  2. Step 2: Convert to fraction form
    555.53/761.06 = 534.76/x
  3. Step 3: Cross multiply
    555.53x = 761.06 × 534.76
  4. Step 4: Simplify right side
    555.53x = 406,983.88
  5. Step 5: Solve for x
    x = 406,983.88/555.53
  6. Step 6: Final answer
    x = 732.61

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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.