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Finding the Fourth Proportional to 187,397.40, 280,901.70 and 103,027.80

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Solution

The fourth proportional to 187,397.40, 280,901.70 and 103,027.80 is: 154,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,397.40 : 280,901.70 = 103,027.80 : x
  2. Step 2: Convert to fraction form
    187,397.40/280,901.70 = 103,027.80/x
  3. Step 3: Cross multiply
    187,397.40x = 280,901.70 × 103,027.80
  4. Step 4: Simplify right side
    187,397.40x = 28,940,684,167.26
  5. Step 5: Solve for x
    x = 28,940,684,167.26/187,397.40
  6. Step 6: Final answer
    x = 154,434.82

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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.