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Finding the Fourth Proportional to 203,304.60, 280,569.30 and 112,660.32

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Solution

The fourth proportional to 203,304.60, 280,569.30 and 112,660.32 is: 155,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,304.60 : 280,569.30 = 112,660.32 : x
  2. Step 2: Convert to fraction form
    203,304.60/280,569.30 = 112,660.32/x
  3. Step 3: Cross multiply
    203,304.60x = 280,569.30 × 112,660.32
  4. Step 4: Simplify right side
    203,304.60x = 31,609,027,120.18
  5. Step 5: Solve for x
    x = 31,609,027,120.18/203,304.60
  6. Step 6: Final answer
    x = 155,476.20

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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.