Home / 266,780.12-400,022.44-109,119.28

Finding the Fourth Proportional to 266,780.12, 400,022.44 and 109,119.28

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Solution

The fourth proportional to 266,780.12, 400,022.44 and 109,119.28 is: 163,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,780.12 : 400,022.44 = 109,119.28 : x
  2. Step 2: Convert to fraction form
    266,780.12/400,022.44 = 109,119.28/x
  3. Step 3: Cross multiply
    266,780.12x = 400,022.44 × 109,119.28
  4. Step 4: Simplify right side
    266,780.12x = 43,650,160,636.64
  5. Step 5: Solve for x
    x = 43,650,160,636.64/266,780.12
  6. Step 6: Final answer
    x = 163,618.49

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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.