Home / 276,635.22-381,746.31-154,124.70

Finding the Fourth Proportional to 276,635.22, 381,746.31 and 154,124.70

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Solution

The fourth proportional to 276,635.22, 381,746.31 and 154,124.70 is: 212,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,635.22 : 381,746.31 = 154,124.70 : x
  2. Step 2: Convert to fraction form
    276,635.22/381,746.31 = 154,124.70/x
  3. Step 3: Cross multiply
    276,635.22x = 381,746.31 × 154,124.70
  4. Step 4: Simplify right side
    276,635.22x = 58,836,535,504.86
  5. Step 5: Solve for x
    x = 58,836,535,504.86/276,635.22
  6. Step 6: Final answer
    x = 212,686.35

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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.