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Finding the Fourth Proportional to 220,352.52, 330,528.88 and 145,455.16

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Solution

The fourth proportional to 220,352.52, 330,528.88 and 145,455.16 is: 218,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,352.52 : 330,528.88 = 145,455.16 : x
  2. Step 2: Convert to fraction form
    220,352.52/330,528.88 = 145,455.16/x
  3. Step 3: Cross multiply
    220,352.52x = 330,528.88 × 145,455.16
  4. Step 4: Simplify right side
    220,352.52x = 48,077,129,472.38
  5. Step 5: Solve for x
    x = 48,077,129,472.38/220,352.52
  6. Step 6: Final answer
    x = 218,182.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.