Home / 276,295.36-381,288.18-163,125.40

Finding the Fourth Proportional to 276,295.36, 381,288.18 and 163,125.40

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Solution

The fourth proportional to 276,295.36, 381,288.18 and 163,125.40 is: 225,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,295.36 : 381,288.18 = 163,125.40 : x
  2. Step 2: Convert to fraction form
    276,295.36/381,288.18 = 163,125.40/x
  3. Step 3: Cross multiply
    276,295.36x = 381,288.18 × 163,125.40
  4. Step 4: Simplify right side
    276,295.36x = 62,197,786,877.77
  5. Step 5: Solve for x
    x = 62,197,786,877.77/276,295.36
  6. Step 6: Final answer
    x = 225,113.40

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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.