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Finding the Fourth Proportional to 527.00, 727.45 and 330.50

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Solution

The fourth proportional to 527.00, 727.45 and 330.50 is: 456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.00 : 727.45 = 330.50 : x
  2. Step 2: Convert to fraction form
    527.00/727.45 = 330.50/x
  3. Step 3: Cross multiply
    527.00x = 727.45 × 330.50
  4. Step 4: Simplify right side
    527.00x = 240,423.22
  5. Step 5: Solve for x
    x = 240,423.22/527.00
  6. Step 6: Final answer
    x = 456.22

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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.