Home / 302,830.75-454,246.17-81,214.75

Finding the Fourth Proportional to 302,830.75, 454,246.17 and 81,214.75

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Solution

The fourth proportional to 302,830.75, 454,246.17 and 81,214.75 is: 121,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,830.75 : 454,246.17 = 81,214.75 : x
  2. Step 2: Convert to fraction form
    302,830.75/454,246.17 = 81,214.75/x
  3. Step 3: Cross multiply
    302,830.75x = 454,246.17 × 81,214.75
  4. Step 4: Simplify right side
    302,830.75x = 36,891,489,135.01
  5. Step 5: Solve for x
    x = 36,891,489,135.01/302,830.75
  6. Step 6: Final answer
    x = 121,822.14

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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.