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Finding the Fourth Proportional to 203,483.20, 280,810.08 and 112,842.88

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Solution

The fourth proportional to 203,483.20, 280,810.08 and 112,842.88 is: 155,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,483.20 : 280,810.08 = 112,842.88 : x
  2. Step 2: Convert to fraction form
    203,483.20/280,810.08 = 112,842.88/x
  3. Step 3: Cross multiply
    203,483.20x = 280,810.08 × 112,842.88
  4. Step 4: Simplify right side
    203,483.20x = 31,687,418,160.23
  5. Step 5: Solve for x
    x = 31,687,418,160.23/203,483.20
  6. Step 6: Final answer
    x = 155,724.98

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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.