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Finding the Fourth Proportional to 187,073.28, 280,720.54 and 68,827.58

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Solution

The fourth proportional to 187,073.28, 280,720.54 and 68,827.58 is: 103,282.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,073.28 : 280,720.54 = 68,827.58 : x
  2. Step 2: Convert to fraction form
    187,073.28/280,720.54 = 68,827.58/x
  3. Step 3: Cross multiply
    187,073.28x = 280,720.54 × 68,827.58
  4. Step 4: Simplify right side
    187,073.28x = 19,321,315,424.49
  5. Step 5: Solve for x
    x = 19,321,315,424.49/187,073.28
  6. Step 6: Final answer
    x = 103,282.07

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1.5x scale

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.