Home / 381,126.31-525,916.38-220,033.35

Finding the Fourth Proportional to 381,126.31, 525,916.38 and 220,033.35

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Solution

The fourth proportional to 381,126.31, 525,916.38 and 220,033.35 is: 303,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,126.31 : 525,916.38 = 220,033.35 : x
  2. Step 2: Convert to fraction form
    381,126.31/525,916.38 = 220,033.35/x
  3. Step 3: Cross multiply
    381,126.31x = 525,916.38 × 220,033.35
  4. Step 4: Simplify right side
    381,126.31x = 115,719,141,811.11
  5. Step 5: Solve for x
    x = 115,719,141,811.11/381,126.31
  6. Step 6: Final answer
    x = 303,624.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.