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Finding the Fourth Proportional to 247,727.68, 371,496.42 and 105,482.78

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Solution

The fourth proportional to 247,727.68, 371,496.42 and 105,482.78 is: 158,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,727.68 : 371,496.42 = 105,482.78 : x
  2. Step 2: Convert to fraction form
    247,727.68/371,496.42 = 105,482.78/x
  3. Step 3: Cross multiply
    247,727.68x = 371,496.42 × 105,482.78
  4. Step 4: Simplify right side
    247,727.68x = 39,186,475,141.65
  5. Step 5: Solve for x
    x = 39,186,475,141.65/247,727.68
  6. Step 6: Final answer
    x = 158,183.68

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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.