Home / 266,776.91-400,165.34-109,005.20

Finding the Fourth Proportional to 266,776.91, 400,165.34 and 109,005.20

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Solution

The fourth proportional to 266,776.91, 400,165.34 and 109,005.20 is: 163,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,776.91 : 400,165.34 = 109,005.20 : x
  2. Step 2: Convert to fraction form
    266,776.91/400,165.34 = 109,005.20/x
  3. Step 3: Cross multiply
    266,776.91x = 400,165.34 × 109,005.20
  4. Step 4: Simplify right side
    266,776.91x = 43,620,100,373.92
  5. Step 5: Solve for x
    x = 43,620,100,373.92/266,776.91
  6. Step 6: Final answer
    x = 163,507.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.