Home / 223,245.50-308,081.21-121,272.17

Finding the Fourth Proportional to 223,245.50, 308,081.21 and 121,272.17

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Solution

The fourth proportional to 223,245.50, 308,081.21 and 121,272.17 is: 167,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,245.50 : 308,081.21 = 121,272.17 : x
  2. Step 2: Convert to fraction form
    223,245.50/308,081.21 = 121,272.17/x
  3. Step 3: Cross multiply
    223,245.50x = 308,081.21 × 121,272.17
  4. Step 4: Simplify right side
    223,245.50x = 37,361,674,726.16
  5. Step 5: Solve for x
    x = 37,361,674,726.16/223,245.50
  6. Step 6: Final answer
    x = 167,356.90

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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.