Home / 247,844.40-371,356.20-142,479.60

Finding the Fourth Proportional to 247,844.40, 371,356.20 and 142,479.60

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Solution

The fourth proportional to 247,844.40, 371,356.20 and 142,479.60 is: 213,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,844.40 : 371,356.20 = 142,479.60 : x
  2. Step 2: Convert to fraction form
    247,844.40/371,356.20 = 142,479.60/x
  3. Step 3: Cross multiply
    247,844.40x = 371,356.20 × 142,479.60
  4. Step 4: Simplify right side
    247,844.40x = 52,910,682,833.52
  5. Step 5: Solve for x
    x = 52,910,682,833.52/247,844.40
  6. Step 6: Final answer
    x = 213,483.47

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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.