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Finding the Fourth Proportional to 527.36, 727.88 and 330.76

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Solution

The fourth proportional to 527.36, 727.88 and 330.76 is: 456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.36 : 727.88 = 330.76 : x
  2. Step 2: Convert to fraction form
    527.36/727.88 = 330.76/x
  3. Step 3: Cross multiply
    527.36x = 727.88 × 330.76
  4. Step 4: Simplify right side
    527.36x = 240,753.59
  5. Step 5: Solve for x
    x = 240,753.59/527.36
  6. Step 6: Final answer
    x = 456.53

Related Problems

Find fourth proportional to 263.68, 363.94 and 165.38
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Double scale
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Similar ratio
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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.