Home / 302,925.20-454,387.79-81,309.20

Finding the Fourth Proportional to 302,925.20, 454,387.79 and 81,309.20

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Solution

The fourth proportional to 302,925.20, 454,387.79 and 81,309.20 is: 121,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,925.20 : 454,387.79 = 81,309.20 : x
  2. Step 2: Convert to fraction form
    302,925.20/454,387.79 = 81,309.20/x
  3. Step 3: Cross multiply
    302,925.20x = 454,387.79 × 81,309.20
  4. Step 4: Simplify right side
    302,925.20x = 36,945,905,016.18
  5. Step 5: Solve for x
    x = 36,945,905,016.18/302,925.20
  6. Step 6: Final answer
    x = 121,963.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.