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Finding the Fourth Proportional to 268,502.55, 402,767.94 and 68,824.59

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Solution

The fourth proportional to 268,502.55, 402,767.94 and 68,824.59 is: 103,240.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,502.55 : 402,767.94 = 68,824.59 : x
  2. Step 2: Convert to fraction form
    268,502.55/402,767.94 = 68,824.59/x
  3. Step 3: Cross multiply
    268,502.55x = 402,767.94 × 68,824.59
  4. Step 4: Simplify right side
    268,502.55x = 27,720,337,083.36
  5. Step 5: Solve for x
    x = 27,720,337,083.36/268,502.55
  6. Step 6: Final answer
    x = 103,240.50

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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.