Home / 264,272.40-396,408.60-138,301.20

Finding the Fourth Proportional to 264,272.40, 396,408.60 and 138,301.20

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Solution

The fourth proportional to 264,272.40, 396,408.60 and 138,301.20 is: 207,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,272.40 : 396,408.60 = 138,301.20 : x
  2. Step 2: Convert to fraction form
    264,272.40/396,408.60 = 138,301.20/x
  3. Step 3: Cross multiply
    264,272.40x = 396,408.60 × 138,301.20
  4. Step 4: Simplify right side
    264,272.40x = 54,823,785,070.32
  5. Step 5: Solve for x
    x = 54,823,785,070.32/264,272.40
  6. Step 6: Final answer
    x = 207,451.80

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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.