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Finding the Fourth Proportional to 268,389.20, 402,583.80 and 110,565.20

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Solution

The fourth proportional to 268,389.20, 402,583.80 and 110,565.20 is: 165,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,389.20 : 402,583.80 = 110,565.20 : x
  2. Step 2: Convert to fraction form
    268,389.20/402,583.80 = 110,565.20/x
  3. Step 3: Cross multiply
    268,389.20x = 402,583.80 × 110,565.20
  4. Step 4: Simplify right side
    268,389.20x = 44,511,758,363.76
  5. Step 5: Solve for x
    x = 44,511,758,363.76/268,389.20
  6. Step 6: Final answer
    x = 165,847.80

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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.