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Finding the Fourth Proportional to 219,800.79, 329,503.14 and 79,461

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Solution

The fourth proportional to 219,800.79, 329,503.14 and 79,461 is: 119,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,800.79 : 329,503.14 = 79,461 : x
  2. Step 2: Convert to fraction form
    219,800.79/329,503.14 = 79,461/x
  3. Step 3: Cross multiply
    219,800.79x = 329,503.14 × 79,461
  4. Step 4: Simplify right side
    219,800.79x = 26,182,649,007.54
  5. Step 5: Solve for x
    x = 26,182,649,007.54/219,800.79
  6. Step 6: Final answer
    x = 119,119.90

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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.