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Finding the Fourth Proportional to 308,770.13, 426,102.78 and 167,458.13

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Solution

The fourth proportional to 308,770.13, 426,102.78 and 167,458.13 is: 231,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,770.13 : 426,102.78 = 167,458.13 : x
  2. Step 2: Convert to fraction form
    308,770.13/426,102.78 = 167,458.13/x
  3. Step 3: Cross multiply
    308,770.13x = 426,102.78 × 167,458.13
  4. Step 4: Simplify right side
    308,770.13x = 71,354,374,726.60
  5. Step 5: Solve for x
    x = 71,354,374,726.60/308,770.13
  6. Step 6: Final answer
    x = 231,092.22

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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.