Home / 302,690.62-454,062.07-78,049.17

Finding the Fourth Proportional to 302,690.62, 454,062.07 and 78,049.17

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Solution

The fourth proportional to 302,690.62, 454,062.07 and 78,049.17 is: 117,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,690.62 : 454,062.07 = 78,049.17 : x
  2. Step 2: Convert to fraction form
    302,690.62/454,062.07 = 78,049.17/x
  3. Step 3: Cross multiply
    302,690.62x = 454,062.07 × 78,049.17
  4. Step 4: Simplify right side
    302,690.62x = 35,439,167,789.54
  5. Step 5: Solve for x
    x = 35,439,167,789.54/302,690.62
  6. Step 6: Final answer
    x = 117,080.50

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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.