Home / 305,022.26-420,925.68-169,055.78

Finding the Fourth Proportional to 305,022.26, 420,925.68 and 169,055.78

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Solution

The fourth proportional to 305,022.26, 420,925.68 and 169,055.78 is: 233,294.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,022.26 : 420,925.68 = 169,055.78 : x
  2. Step 2: Convert to fraction form
    305,022.26/420,925.68 = 169,055.78/x
  3. Step 3: Cross multiply
    305,022.26x = 420,925.68 × 169,055.78
  4. Step 4: Simplify right side
    305,022.26x = 71,159,919,154.43
  5. Step 5: Solve for x
    x = 71,159,919,154.43/305,022.26
  6. Step 6: Final answer
    x = 233,294.18

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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.