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Finding the Fourth Proportional to 187,104.64, 280,867.30 and 74,864.06

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Solution

The fourth proportional to 187,104.64, 280,867.30 and 74,864.06 is: 112,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,104.64 : 280,867.30 = 74,864.06 : x
  2. Step 2: Convert to fraction form
    187,104.64/280,867.30 = 74,864.06/x
  3. Step 3: Cross multiply
    187,104.64x = 280,867.30 × 74,864.06
  4. Step 4: Simplify right side
    187,104.64x = 21,026,866,399.24
  5. Step 5: Solve for x
    x = 21,026,866,399.24/187,104.64
  6. Step 6: Final answer
    x = 112,380.25

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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.