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Finding the Fourth Proportional to 189,373.60, 261,348.24 and 108,827.20

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Solution

The fourth proportional to 189,373.60, 261,348.24 and 108,827.20 is: 150,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,373.60 : 261,348.24 = 108,827.20 : x
  2. Step 2: Convert to fraction form
    189,373.60/261,348.24 = 108,827.20/x
  3. Step 3: Cross multiply
    189,373.60x = 261,348.24 × 108,827.20
  4. Step 4: Simplify right side
    189,373.60x = 28,441,797,184.13
  5. Step 5: Solve for x
    x = 28,441,797,184.13/189,373.60
  6. Step 6: Final answer
    x = 150,188.82

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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.