Home / 278,162.10-417,318.03-143,152.61

Finding the Fourth Proportional to 278,162.10, 417,318.03 and 143,152.61

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Solution

The fourth proportional to 278,162.10, 417,318.03 and 143,152.61 is: 214,767.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,162.10 : 417,318.03 = 143,152.61 : x
  2. Step 2: Convert to fraction form
    278,162.10/417,318.03 = 143,152.61/x
  3. Step 3: Cross multiply
    278,162.10x = 417,318.03 × 143,152.61
  4. Step 4: Simplify right side
    278,162.10x = 59,740,163,107.97
  5. Step 5: Solve for x
    x = 59,740,163,107.97/278,162.10
  6. Step 6: Final answer
    x = 214,767.44

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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.