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Finding the Fourth Proportional to 322,479.60, 483,719.40 and 247,975.80

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Solution

The fourth proportional to 322,479.60, 483,719.40 and 247,975.80 is: 371,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,479.60 : 483,719.40 = 247,975.80 : x
  2. Step 2: Convert to fraction form
    322,479.60/483,719.40 = 247,975.80/x
  3. Step 3: Cross multiply
    322,479.60x = 483,719.40 × 247,975.80
  4. Step 4: Simplify right side
    322,479.60x = 119,950,705,190.52
  5. Step 5: Solve for x
    x = 119,950,705,190.52/322,479.60
  6. Step 6: Final answer
    x = 371,963.70

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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.