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Finding the Fourth Proportional to 187,334.95, 280,870.98 and 68,991.10

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Solution

The fourth proportional to 187,334.95, 280,870.98 and 68,991.10 is: 103,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,334.95 : 280,870.98 = 68,991.10 : x
  2. Step 2: Convert to fraction form
    187,334.95/280,870.98 = 68,991.10/x
  3. Step 3: Cross multiply
    187,334.95x = 280,870.98 × 68,991.10
  4. Step 4: Simplify right side
    187,334.95x = 19,377,597,868.28
  5. Step 5: Solve for x
    x = 19,377,597,868.28/187,334.95
  6. Step 6: Final answer
    x = 103,438.24

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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.