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Finding the Fourth Proportional to 529.74, 730.76 and 333.18

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Solution

The fourth proportional to 529.74, 730.76 and 333.18 is: 459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.74 : 730.76 = 333.18 : x
  2. Step 2: Convert to fraction form
    529.74/730.76 = 333.18/x
  3. Step 3: Cross multiply
    529.74x = 730.76 × 333.18
  4. Step 4: Simplify right side
    529.74x = 243,472.95
  5. Step 5: Solve for x
    x = 243,472.95/529.74
  6. Step 6: Final answer
    x = 459.61

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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.