Home / 247,868.40-371,392.20-142,503.60

Finding the Fourth Proportional to 247,868.40, 371,392.20 and 142,503.60

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Solution

The fourth proportional to 247,868.40, 371,392.20 and 142,503.60 is: 213,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,868.40 : 371,392.20 = 142,503.60 : x
  2. Step 2: Convert to fraction form
    247,868.40/371,392.20 = 142,503.60/x
  3. Step 3: Cross multiply
    247,868.40x = 371,392.20 × 142,503.60
  4. Step 4: Simplify right side
    247,868.40x = 52,924,725,511.92
  5. Step 5: Solve for x
    x = 52,924,725,511.92/247,868.40
  6. Step 6: Final answer
    x = 213,519.45

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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.