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Finding the Fourth Proportional to 381,250.63, 571,880.04 and 115,013.45

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Solution

The fourth proportional to 381,250.63, 571,880.04 and 115,013.45 is: 172,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,250.63 : 571,880.04 = 115,013.45 : x
  2. Step 2: Convert to fraction form
    381,250.63/571,880.04 = 115,013.45/x
  3. Step 3: Cross multiply
    381,250.63x = 571,880.04 × 115,013.45
  4. Step 4: Simplify right side
    381,250.63x = 65,773,896,386.54
  5. Step 5: Solve for x
    x = 65,773,896,386.54/381,250.63
  6. Step 6: Final answer
    x = 172,521.41

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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.