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Finding the Fourth Proportional to 239,162.50, 358,619.12 and 89,279.51

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Solution

The fourth proportional to 239,162.50, 358,619.12 and 89,279.51 is: 133,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,162.50 : 358,619.12 = 89,279.51 : x
  2. Step 2: Convert to fraction form
    239,162.50/358,619.12 = 89,279.51/x
  3. Step 3: Cross multiply
    239,162.50x = 358,619.12 × 89,279.51
  4. Step 4: Simplify right side
    239,162.50x = 32,017,338,863.83
  5. Step 5: Solve for x
    x = 32,017,338,863.83/239,162.50
  6. Step 6: Final answer
    x = 133,872.74

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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.