Home / 276,286.86-381,276.45-163,116.90

Finding the Fourth Proportional to 276,286.86, 381,276.45 and 163,116.90

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Solution

The fourth proportional to 276,286.86, 381,276.45 and 163,116.90 is: 225,101.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,286.86 : 381,276.45 = 163,116.90 : x
  2. Step 2: Convert to fraction form
    276,286.86/381,276.45 = 163,116.90/x
  3. Step 3: Cross multiply
    276,286.86x = 381,276.45 × 163,116.90
  4. Step 4: Simplify right side
    276,286.86x = 62,192,632,567.01
  5. Step 5: Solve for x
    x = 62,192,632,567.01/276,286.86
  6. Step 6: Final answer
    x = 225,101.67

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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.