Home / 276,789.22-381,997.35-169,430.20

Finding the Fourth Proportional to 276,789.22, 381,997.35 and 169,430.20

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Solution

The fourth proportional to 276,789.22, 381,997.35 and 169,430.20 is: 233,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,789.22 : 381,997.35 = 169,430.20 : x
  2. Step 2: Convert to fraction form
    276,789.22/381,997.35 = 169,430.20/x
  3. Step 3: Cross multiply
    276,789.22x = 381,997.35 × 169,430.20
  4. Step 4: Simplify right side
    276,789.22x = 64,721,884,652.83
  5. Step 5: Solve for x
    x = 64,721,884,652.83/276,789.22
  6. Step 6: Final answer
    x = 233,830.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.