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Finding the Fourth Proportional to 502,486.56, 753,541.92 and 221,850.72

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Solution

The fourth proportional to 502,486.56, 753,541.92 and 221,850.72 is: 332,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,486.56 : 753,541.92 = 221,850.72 : x
  2. Step 2: Convert to fraction form
    502,486.56/753,541.92 = 221,850.72/x
  3. Step 3: Cross multiply
    502,486.56x = 753,541.92 × 221,850.72
  4. Step 4: Simplify right side
    502,486.56x = 167,173,817,502.18
  5. Step 5: Solve for x
    x = 167,173,817,502.18/502,486.56
  6. Step 6: Final answer
    x = 332,693.11

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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.