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Finding the Fourth Proportional to 222,315.12, 306,766.04 and 126,816.12

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Solution

The fourth proportional to 222,315.12, 306,766.04 and 126,816.12 is: 174,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,315.12 : 306,766.04 = 126,816.12 : x
  2. Step 2: Convert to fraction form
    222,315.12/306,766.04 = 126,816.12/x
  3. Step 3: Cross multiply
    222,315.12x = 306,766.04 × 126,816.12
  4. Step 4: Simplify right side
    222,315.12x = 38,902,878,306.48
  5. Step 5: Solve for x
    x = 38,902,878,306.48/222,315.12
  6. Step 6: Final answer
    x = 174,989.80

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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.