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Finding the Fourth Proportional to 187,251.09, 280,848.98 and 68,894.90

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Solution

The fourth proportional to 187,251.09, 280,848.98 and 68,894.90 is: 103,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,251.09 : 280,848.98 = 68,894.90 : x
  2. Step 2: Convert to fraction form
    187,251.09/280,848.98 = 68,894.90/x
  3. Step 3: Cross multiply
    187,251.09x = 280,848.98 × 68,894.90
  4. Step 4: Simplify right side
    187,251.09x = 19,349,060,987.96
  5. Step 5: Solve for x
    x = 19,349,060,987.96/187,251.09
  6. Step 6: Final answer
    x = 103,332.17

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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.