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Finding the Fourth Proportional to 529.39, 730.47 and 332.76

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Solution

The fourth proportional to 529.39, 730.47 and 332.76 is: 459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.39 : 730.47 = 332.76 : x
  2. Step 2: Convert to fraction form
    529.39/730.47 = 332.76/x
  3. Step 3: Cross multiply
    529.39x = 730.47 × 332.76
  4. Step 4: Simplify right side
    529.39x = 243,069.53
  5. Step 5: Solve for x
    x = 243,069.53/529.39
  6. Step 6: Final answer
    x = 459.15

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Find fourth proportional to 264.69, 365.23 and 166.38
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1.5x scale

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.