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Finding the Fourth Proportional to 381,244.72, 526,141.56 and 220,129.24

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Solution

The fourth proportional to 381,244.72, 526,141.56 and 220,129.24 is: 303,792.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,244.72 : 526,141.56 = 220,129.24 : x
  2. Step 2: Convert to fraction form
    381,244.72/526,141.56 = 220,129.24/x
  3. Step 3: Cross multiply
    381,244.72x = 526,141.56 × 220,129.24
  4. Step 4: Simplify right side
    381,244.72x = 115,819,141,735.21
  5. Step 5: Solve for x
    x = 115,819,141,735.21/381,244.72
  6. Step 6: Final answer
    x = 303,792.12

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1.5x scale

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.