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Finding the Fourth Proportional to 530.55, 736.29 and 517.50

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Solution

The fourth proportional to 530.55, 736.29 and 517.50 is: 718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.55 : 736.29 = 517.50 : x
  2. Step 2: Convert to fraction form
    530.55/736.29 = 517.50/x
  3. Step 3: Cross multiply
    530.55x = 736.29 × 517.50
  4. Step 4: Simplify right side
    530.55x = 381,030.08
  5. Step 5: Solve for x
    x = 381,030.08/530.55
  6. Step 6: Final answer
    x = 718.18

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.