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Finding the Fourth Proportional to 381,158.30, 526,616.28 and 324,397.46

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Solution

The fourth proportional to 381,158.30, 526,616.28 and 324,397.46 is: 448,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,158.30 : 526,616.28 = 324,397.46 : x
  2. Step 2: Convert to fraction form
    381,158.30/526,616.28 = 324,397.46/x
  3. Step 3: Cross multiply
    381,158.30x = 526,616.28 × 324,397.46
  4. Step 4: Simplify right side
    381,158.30x = 170,832,980,993.57
  5. Step 5: Solve for x
    x = 170,832,980,993.57/381,158.30
  6. Step 6: Final answer
    x = 448,194.32

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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.