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Finding the Fourth Proportional to 189,150.80, 283,726.20 and 187,838.60

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Solution

The fourth proportional to 189,150.80, 283,726.20 and 187,838.60 is: 281,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,150.80 : 283,726.20 = 187,838.60 : x
  2. Step 2: Convert to fraction form
    189,150.80/283,726.20 = 187,838.60/x
  3. Step 3: Cross multiply
    189,150.80x = 283,726.20 × 187,838.60
  4. Step 4: Simplify right side
    189,150.80x = 53,294,732,191.32
  5. Step 5: Solve for x
    x = 53,294,732,191.32/189,150.80
  6. Step 6: Final answer
    x = 281,757.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.