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Finding the Fourth Proportional to 270,685.49, 406,026.41 and 211,570.88

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Solution

The fourth proportional to 270,685.49, 406,026.41 and 211,570.88 is: 317,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,685.49 : 406,026.41 = 211,570.88 : x
  2. Step 2: Convert to fraction form
    270,685.49/406,026.41 = 211,570.88/x
  3. Step 3: Cross multiply
    270,685.49x = 406,026.41 × 211,570.88
  4. Step 4: Simplify right side
    270,685.49x = 85,903,361,778.95
  5. Step 5: Solve for x
    x = 85,903,361,778.95/270,685.49
  6. Step 6: Final answer
    x = 317,354.89

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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.