Home / 219,678.38-329,543.17-79,503.02

Finding the Fourth Proportional to 219,678.38, 329,543.17 and 79,503.02

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Solution

The fourth proportional to 219,678.38, 329,543.17 and 79,503.02 is: 119,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,678.38 : 329,543.17 = 79,503.02 : x
  2. Step 2: Convert to fraction form
    219,678.38/329,543.17 = 79,503.02/x
  3. Step 3: Cross multiply
    219,678.38x = 329,543.17 × 79,503.02
  4. Step 4: Simplify right side
    219,678.38x = 26,199,677,235.37
  5. Step 5: Solve for x
    x = 26,199,677,235.37/219,678.38
  6. Step 6: Final answer
    x = 119,263.79

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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.