Home / 247,291.20-371,325.60-142,315.20

Finding the Fourth Proportional to 247,291.20, 371,325.60 and 142,315.20

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Solution

The fourth proportional to 247,291.20, 371,325.60 and 142,315.20 is: 213,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,291.20 : 371,325.60 = 142,315.20 : x
  2. Step 2: Convert to fraction form
    247,291.20/371,325.60 = 142,315.20/x
  3. Step 3: Cross multiply
    247,291.20x = 371,325.60 × 142,315.20
  4. Step 4: Simplify right side
    247,291.20x = 52,845,277,029.12
  5. Step 5: Solve for x
    x = 52,845,277,029.12/247,291.20
  6. Step 6: Final answer
    x = 213,696.55

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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.