Home / 266,680.89-400,021.73-108,909.35

Finding the Fourth Proportional to 266,680.89, 400,021.73 and 108,909.35

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Solution

The fourth proportional to 266,680.89, 400,021.73 and 108,909.35 is: 163,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,680.89 : 400,021.73 = 108,909.35 : x
  2. Step 2: Convert to fraction form
    266,680.89/400,021.73 = 108,909.35/x
  3. Step 3: Cross multiply
    266,680.89x = 400,021.73 × 108,909.35
  4. Step 4: Simplify right side
    266,680.89x = 43,566,104,055.52
  5. Step 5: Solve for x
    x = 43,566,104,055.52/266,680.89
  6. Step 6: Final answer
    x = 163,364.18

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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.