Home / 276,831.60-381,818.52-238,657.20

Finding the Fourth Proportional to 276,831.60, 381,818.52 and 238,657.20

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Solution

The fourth proportional to 276,831.60, 381,818.52 and 238,657.20 is: 329,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,831.60 : 381,818.52 = 238,657.20 : x
  2. Step 2: Convert to fraction form
    276,831.60/381,818.52 = 238,657.20/x
  3. Step 3: Cross multiply
    276,831.60x = 381,818.52 × 238,657.20
  4. Step 4: Simplify right side
    276,831.60x = 91,123,738,891.34
  5. Step 5: Solve for x
    x = 91,123,738,891.34/276,831.60
  6. Step 6: Final answer
    x = 329,166.68

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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.