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Finding the Fourth Proportional to 278,026.82, 417,040.20 and 240,475.30

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Solution

The fourth proportional to 278,026.82, 417,040.20 and 240,475.30 is: 360,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,026.82 : 417,040.20 = 240,475.30 : x
  2. Step 2: Convert to fraction form
    278,026.82/417,040.20 = 240,475.30/x
  3. Step 3: Cross multiply
    278,026.82x = 417,040.20 × 240,475.30
  4. Step 4: Simplify right side
    278,026.82x = 100,287,867,207.06
  5. Step 5: Solve for x
    x = 100,287,867,207.06/278,026.82
  6. Step 6: Final answer
    x = 360,712.92

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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.