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Finding the Fourth Proportional to 222,259.86, 306,715.50 and 126,768.12

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Solution

The fourth proportional to 222,259.86, 306,715.50 and 126,768.12 is: 174,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,259.86 : 306,715.50 = 126,768.12 : x
  2. Step 2: Convert to fraction form
    222,259.86/306,715.50 = 126,768.12/x
  3. Step 3: Cross multiply
    222,259.86x = 306,715.50 × 126,768.12
  4. Step 4: Simplify right side
    222,259.86x = 38,881,747,309.86
  5. Step 5: Solve for x
    x = 38,881,747,309.86/222,259.86
  6. Step 6: Final answer
    x = 174,938.23

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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.