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Finding the Fourth Proportional to 527.81, 728.64 and 341.57

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Solution

The fourth proportional to 527.81, 728.64 and 341.57 is: 471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.81 : 728.64 = 341.57 : x
  2. Step 2: Convert to fraction form
    527.81/728.64 = 341.57/x
  3. Step 3: Cross multiply
    527.81x = 728.64 × 341.57
  4. Step 4: Simplify right side
    527.81x = 248,877.92
  5. Step 5: Solve for x
    x = 248,877.92/527.81
  6. Step 6: Final answer
    x = 471.53

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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.