Home / 381,260.78-571,895.28-115,023.62

Finding the Fourth Proportional to 381,260.78, 571,895.28 and 115,023.62

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Solution

The fourth proportional to 381,260.78, 571,895.28 and 115,023.62 is: 172,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,260.78 : 571,895.28 = 115,023.62 : x
  2. Step 2: Convert to fraction form
    381,260.78/571,895.28 = 115,023.62/x
  3. Step 3: Cross multiply
    381,260.78x = 571,895.28 × 115,023.62
  4. Step 4: Simplify right side
    381,260.78x = 65,781,465,366.51
  5. Step 5: Solve for x
    x = 65,781,465,366.51/381,260.78
  6. Step 6: Final answer
    x = 172,536.67

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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.