Home / 219,581.80-329,387.10-61,815.40

Finding the Fourth Proportional to 219,581.80, 329,387.10 and 61,815.40

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Solution

The fourth proportional to 219,581.80, 329,387.10 and 61,815.40 is: 92,727.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,581.80 : 329,387.10 = 61,815.40 : x
  2. Step 2: Convert to fraction form
    219,581.80/329,387.10 = 61,815.40/x
  3. Step 3: Cross multiply
    219,581.80x = 329,387.10 × 61,815.40
  4. Step 4: Simplify right side
    219,581.80x = 20,361,195,341.34
  5. Step 5: Solve for x
    x = 20,361,195,341.34/219,581.80
  6. Step 6: Final answer
    x = 92,727.15

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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.