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Finding the Fourth Proportional to 502,502.80, 753,754.20 and 221,875.60

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Solution

The fourth proportional to 502,502.80, 753,754.20 and 221,875.60 is: 332,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,502.80 : 753,754.20 = 221,875.60 : x
  2. Step 2: Convert to fraction form
    502,502.80/753,754.20 = 221,875.60/x
  3. Step 3: Cross multiply
    502,502.80x = 753,754.20 × 221,875.60
  4. Step 4: Simplify right side
    502,502.80x = 167,239,665,377.52
  5. Step 5: Solve for x
    x = 167,239,665,377.52/502,502.80
  6. Step 6: Final answer
    x = 332,813.40

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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.