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Finding the Fourth Proportional to 278,373.06, 417,600.69 and 100,838.76

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Solution

The fourth proportional to 278,373.06, 417,600.69 and 100,838.76 is: 151,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,373.06 : 417,600.69 = 100,838.76 : x
  2. Step 2: Convert to fraction form
    278,373.06/417,600.69 = 100,838.76/x
  3. Step 3: Cross multiply
    278,373.06x = 417,600.69 × 100,838.76
  4. Step 4: Simplify right side
    278,373.06x = 42,110,335,754.74
  5. Step 5: Solve for x
    x = 42,110,335,754.74/278,373.06
  6. Step 6: Final answer
    x = 151,273.03

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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.