Home / 345,778.20-519,056.10-267,240.60

Finding the Fourth Proportional to 345,778.20, 519,056.10 and 267,240.60

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Solution

The fourth proportional to 345,778.20, 519,056.10 and 267,240.60 is: 401,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,778.20 : 519,056.10 = 267,240.60 : x
  2. Step 2: Convert to fraction form
    345,778.20/519,056.10 = 267,240.60/x
  3. Step 3: Cross multiply
    345,778.20x = 519,056.10 × 267,240.60
  4. Step 4: Simplify right side
    345,778.20x = 138,712,863,597.66
  5. Step 5: Solve for x
    x = 138,712,863,597.66/345,778.20
  6. Step 6: Final answer
    x = 401,161.39

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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.