Home / 381,277.50-571,916.28-100,794.78

Finding the Fourth Proportional to 381,277.50, 571,916.28 and 100,794.78

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Solution

The fourth proportional to 381,277.50, 571,916.28 and 100,794.78 is: 151,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,277.50 : 571,916.28 = 100,794.78 : x
  2. Step 2: Convert to fraction form
    381,277.50/571,916.28 = 100,794.78/x
  3. Step 3: Cross multiply
    381,277.50x = 571,916.28 × 100,794.78
  4. Step 4: Simplify right side
    381,277.50x = 57,646,175,621.02
  5. Step 5: Solve for x
    x = 57,646,175,621.02/381,277.50
  6. Step 6: Final answer
    x = 151,192.18

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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.