Home / 278,001.51-417,002.26-67,637.62

Finding the Fourth Proportional to 278,001.51, 417,002.26 and 67,637.62

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Solution

The fourth proportional to 278,001.51, 417,002.26 and 67,637.62 is: 101,456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,001.51 : 417,002.26 = 67,637.62 : x
  2. Step 2: Convert to fraction form
    278,001.51/417,002.26 = 67,637.62/x
  3. Step 3: Cross multiply
    278,001.51x = 417,002.26 × 67,637.62
  4. Step 4: Simplify right side
    278,001.51x = 28,205,040,401.02
  5. Step 5: Solve for x
    x = 28,205,040,401.02/278,001.51
  6. Step 6: Final answer
    x = 101,456.43

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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.