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Finding the Fourth Proportional to 268,418.72, 402,332.81 and 110,561.06

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Solution

The fourth proportional to 268,418.72, 402,332.81 and 110,561.06 is: 165,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,418.72 : 402,332.81 = 110,561.06 : x
  2. Step 2: Convert to fraction form
    268,418.72/402,332.81 = 110,561.06/x
  3. Step 3: Cross multiply
    268,418.72x = 402,332.81 × 110,561.06
  4. Step 4: Simplify right side
    268,418.72x = 44,482,339,381.91
  5. Step 5: Solve for x
    x = 44,482,339,381.91/268,418.72
  6. Step 6: Final answer
    x = 165,719.96

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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.