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Finding the Fourth Proportional to 268,953.92, 403,363.65 and 79,376.66

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Solution

The fourth proportional to 268,953.92, 403,363.65 and 79,376.66 is: 119,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,953.92 : 403,363.65 = 79,376.66 : x
  2. Step 2: Convert to fraction form
    268,953.92/403,363.65 = 79,376.66/x
  3. Step 3: Cross multiply
    268,953.92x = 403,363.65 × 79,376.66
  4. Step 4: Simplify right side
    268,953.92x = 32,017,659,302.41
  5. Step 5: Solve for x
    x = 32,017,659,302.41/268,953.92
  6. Step 6: Final answer
    x = 119,045.15

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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.