Home / 219,443.28-328,916.40-100,869.84

Finding the Fourth Proportional to 219,443.28, 328,916.40 and 100,869.84

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Solution

The fourth proportional to 219,443.28, 328,916.40 and 100,869.84 is: 151,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,443.28 : 328,916.40 = 100,869.84 : x
  2. Step 2: Convert to fraction form
    219,443.28/328,916.40 = 100,869.84/x
  3. Step 3: Cross multiply
    219,443.28x = 328,916.40 × 100,869.84
  4. Step 4: Simplify right side
    219,443.28x = 33,177,744,641.38
  5. Step 5: Solve for x
    x = 33,177,744,641.38/219,443.28
  6. Step 6: Final answer
    x = 151,190.52

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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.