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Finding the Fourth Proportional to 268,395.64, 402,593.63 and 126,136.54

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Solution

The fourth proportional to 268,395.64, 402,593.63 and 126,136.54 is: 189,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,395.64 : 402,593.63 = 126,136.54 : x
  2. Step 2: Convert to fraction form
    268,395.64/402,593.63 = 126,136.54/x
  3. Step 3: Cross multiply
    268,395.64x = 402,593.63 × 126,136.54
  4. Step 4: Simplify right side
    268,395.64x = 50,781,767,386.80
  5. Step 5: Solve for x
    x = 50,781,767,386.80/268,395.64
  6. Step 6: Final answer
    x = 189,204.89

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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.