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Finding the Fourth Proportional to 203,444.20, 280,724.58 and 117,428.20

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Solution

The fourth proportional to 203,444.20, 280,724.58 and 117,428.20 is: 162,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,444.20 : 280,724.58 = 117,428.20 : x
  2. Step 2: Convert to fraction form
    203,444.20/280,724.58 = 117,428.20/x
  3. Step 3: Cross multiply
    203,444.20x = 280,724.58 × 117,428.20
  4. Step 4: Simplify right side
    203,444.20x = 32,964,982,125.16
  5. Step 5: Solve for x
    x = 32,964,982,125.16/203,444.20
  6. Step 6: Final answer
    x = 162,034.51

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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.