Home / 223,265.53-308,105.19-121,290.17

Finding the Fourth Proportional to 223,265.53, 308,105.19 and 121,290.17

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Solution

The fourth proportional to 223,265.53, 308,105.19 and 121,290.17 is: 167,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,265.53 : 308,105.19 = 121,290.17 : x
  2. Step 2: Convert to fraction form
    223,265.53/308,105.19 = 121,290.17/x
  3. Step 3: Cross multiply
    223,265.53x = 308,105.19 × 121,290.17
  4. Step 4: Simplify right side
    223,265.53x = 37,370,130,872.98
  5. Step 5: Solve for x
    x = 37,370,130,872.98/223,265.53
  6. Step 6: Final answer
    x = 167,379.76

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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.