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Finding the Fourth Proportional to 268,569.32, 402,854.04 and 68,889.65

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Solution

The fourth proportional to 268,569.32, 402,854.04 and 68,889.65 is: 103,334.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,569.32 : 402,854.04 = 68,889.65 : x
  2. Step 2: Convert to fraction form
    268,569.32/402,854.04 = 68,889.65/x
  3. Step 3: Cross multiply
    268,569.32x = 402,854.04 × 68,889.65
  4. Step 4: Simplify right side
    268,569.32x = 27,752,471,802.42
  5. Step 5: Solve for x
    x = 27,752,471,802.42/268,569.32
  6. Step 6: Final answer
    x = 103,334.48

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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.