Home / 278,324.10-417,461.85-91,335.60

Finding the Fourth Proportional to 278,324.10, 417,461.85 and 91,335.60

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Solution

The fourth proportional to 278,324.10, 417,461.85 and 91,335.60 is: 136,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,324.10 : 417,461.85 = 91,335.60 : x
  2. Step 2: Convert to fraction form
    278,324.10/417,461.85 = 91,335.60/x
  3. Step 3: Cross multiply
    278,324.10x = 417,461.85 × 91,335.60
  4. Step 4: Simplify right side
    278,324.10x = 38,129,128,546.86
  5. Step 5: Solve for x
    x = 38,129,128,546.86/278,324.10
  6. Step 6: Final answer
    x = 136,995.43

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1.5x scale

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.