Home / 345,766.20-519,038.10-267,228.60

Finding the Fourth Proportional to 345,766.20, 519,038.10 and 267,228.60

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Solution

The fourth proportional to 345,766.20, 519,038.10 and 267,228.60 is: 401,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,766.20 : 519,038.10 = 267,228.60 : x
  2. Step 2: Convert to fraction form
    345,766.20/519,038.10 = 267,228.60/x
  3. Step 3: Cross multiply
    345,766.20x = 519,038.10 × 267,228.60
  4. Step 4: Simplify right side
    345,766.20x = 138,701,824,809.66
  5. Step 5: Solve for x
    x = 138,701,824,809.66/345,766.20
  6. Step 6: Final answer
    x = 401,143.39

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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.