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Finding the Fourth Proportional to 187,327.34, 258,515.52 and 102,449.87

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Solution

The fourth proportional to 187,327.34, 258,515.52 and 102,449.87 is: 141,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,327.34 : 258,515.52 = 102,449.87 : x
  2. Step 2: Convert to fraction form
    187,327.34/258,515.52 = 102,449.87/x
  3. Step 3: Cross multiply
    187,327.34x = 258,515.52 × 102,449.87
  4. Step 4: Simplify right side
    187,327.34x = 26,484,881,416.98
  5. Step 5: Solve for x
    x = 26,484,881,416.98/187,327.34
  6. Step 6: Final answer
    x = 141,382.89

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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.