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Finding the Fourth Proportional to 203,597.80, 280,966.66 and 112,959.71

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Solution

The fourth proportional to 203,597.80, 280,966.66 and 112,959.71 is: 155,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,597.80 : 280,966.66 = 112,959.71 : x
  2. Step 2: Convert to fraction form
    203,597.80/280,966.66 = 112,959.71/x
  3. Step 3: Cross multiply
    203,597.80x = 280,966.66 × 112,959.71
  4. Step 4: Simplify right side
    203,597.80x = 31,737,912,433.27
  5. Step 5: Solve for x
    x = 31,737,912,433.27/203,597.80
  6. Step 6: Final answer
    x = 155,885.34

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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.