Home / 219,815.28-329,719.32-70,053.57

Finding the Fourth Proportional to 219,815.28, 329,719.32 and 70,053.57

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Solution

The fourth proportional to 219,815.28, 329,719.32 and 70,053.57 is: 105,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,815.28 : 329,719.32 = 70,053.57 : x
  2. Step 2: Convert to fraction form
    219,815.28/329,719.32 = 70,053.57/x
  3. Step 3: Cross multiply
    219,815.28x = 329,719.32 × 70,053.57
  4. Step 4: Simplify right side
    219,815.28x = 23,098,015,463.97
  5. Step 5: Solve for x
    x = 23,098,015,463.97/219,815.28
  6. Step 6: Final answer
    x = 105,079.21

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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.