Home / 247,860.40-371,380.20-142,495.60

Finding the Fourth Proportional to 247,860.40, 371,380.20 and 142,495.60

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Solution

The fourth proportional to 247,860.40, 371,380.20 and 142,495.60 is: 213,507.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,860.40 : 371,380.20 = 142,495.60 : x
  2. Step 2: Convert to fraction form
    247,860.40/371,380.20 = 142,495.60/x
  3. Step 3: Cross multiply
    247,860.40x = 371,380.20 × 142,495.60
  4. Step 4: Simplify right side
    247,860.40x = 52,920,044,427.12
  5. Step 5: Solve for x
    x = 52,920,044,427.12/247,860.40
  6. Step 6: Final answer
    x = 213,507.46

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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.