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Finding the Fourth Proportional to 223,195.50, 308,030.45 and 122,612.94

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Solution

The fourth proportional to 223,195.50, 308,030.45 and 122,612.94 is: 169,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,195.50 : 308,030.45 = 122,612.94 : x
  2. Step 2: Convert to fraction form
    223,195.50/308,030.45 = 122,612.94/x
  3. Step 3: Cross multiply
    223,195.50x = 308,030.45 × 122,612.94
  4. Step 4: Simplify right side
    223,195.50x = 37,768,518,470.96
  5. Step 5: Solve for x
    x = 37,768,518,470.96/223,195.50
  6. Step 6: Final answer
    x = 169,217.20

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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.