Home / 278,127.56-417,190.53-100,633.88

Finding the Fourth Proportional to 278,127.56, 417,190.53 and 100,633.88

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Solution

The fourth proportional to 278,127.56, 417,190.53 and 100,633.88 is: 150,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,127.56 : 417,190.53 = 100,633.88 : x
  2. Step 2: Convert to fraction form
    278,127.56/417,190.53 = 100,633.88/x
  3. Step 3: Cross multiply
    278,127.56x = 417,190.53 × 100,633.88
  4. Step 4: Simplify right side
    278,127.56x = 41,983,501,733.16
  5. Step 5: Solve for x
    x = 41,983,501,733.16/278,127.56
  6. Step 6: Final answer
    x = 150,950.53

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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.