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Finding the Fourth Proportional to 527.92, 728.49 and 295

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Solution

The fourth proportional to 527.92, 728.49 and 295 is: 407.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.92 : 728.49 = 295 : x
  2. Step 2: Convert to fraction form
    527.92/728.49 = 295/x
  3. Step 3: Cross multiply
    527.92x = 728.49 × 295
  4. Step 4: Simplify right side
    527.92x = 214,904.55
  5. Step 5: Solve for x
    x = 214,904.55/527.92
  6. Step 6: Final answer
    x = 407.08

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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.