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Finding the Fourth Proportional to 268,252.40, 402,379.50 and 99,809.84

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Solution

The fourth proportional to 268,252.40, 402,379.50 and 99,809.84 is: 149,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,252.40 : 402,379.50 = 99,809.84 : x
  2. Step 2: Convert to fraction form
    268,252.40/402,379.50 = 99,809.84/x
  3. Step 3: Cross multiply
    268,252.40x = 402,379.50 × 99,809.84
  4. Step 4: Simplify right side
    268,252.40x = 40,161,433,514.28
  5. Step 5: Solve for x
    x = 40,161,433,514.28/268,252.40
  6. Step 6: Final answer
    x = 149,715.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.