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Finding the Fourth Proportional to 527.48, 727.58 and 330.82

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Solution

The fourth proportional to 527.48, 727.58 and 330.82 is: 456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.48 : 727.58 = 330.82 : x
  2. Step 2: Convert to fraction form
    527.48/727.58 = 330.82/x
  3. Step 3: Cross multiply
    527.48x = 727.58 × 330.82
  4. Step 4: Simplify right side
    527.48x = 240,698.02
  5. Step 5: Solve for x
    x = 240,698.02/527.48
  6. Step 6: Final answer
    x = 456.32

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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.