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Finding the Fourth Proportional to 189,860.76, 284,684.52 and 63,434.39

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Solution

The fourth proportional to 189,860.76, 284,684.52 and 63,434.39 is: 95,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,860.76 : 284,684.52 = 63,434.39 : x
  2. Step 2: Convert to fraction form
    189,860.76/284,684.52 = 63,434.39/x
  3. Step 3: Cross multiply
    189,860.76x = 284,684.52 × 63,434.39
  4. Step 4: Simplify right side
    189,860.76x = 18,058,789,284.45
  5. Step 5: Solve for x
    x = 18,058,789,284.45/189,860.76
  6. Step 6: Final answer
    x = 95,115.96

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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.