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Finding the Fourth Proportional to 187,423.30, 258,640.84 and 114,814.90

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Solution

The fourth proportional to 187,423.30, 258,640.84 and 114,814.90 is: 158,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,423.30 : 258,640.84 = 114,814.90 : x
  2. Step 2: Convert to fraction form
    187,423.30/258,640.84 = 114,814.90/x
  3. Step 3: Cross multiply
    187,423.30x = 258,640.84 × 114,814.90
  4. Step 4: Simplify right side
    187,423.30x = 29,695,821,606.44
  5. Step 5: Solve for x
    x = 29,695,821,606.44/187,423.30
  6. Step 6: Final answer
    x = 158,442.53

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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.