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Finding the Fourth Proportional to 302,495.20, 418,019.12 and 226,912.48

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Solution

The fourth proportional to 302,495.20, 418,019.12 and 226,912.48 is: 313,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,495.20 : 418,019.12 = 226,912.48 : x
  2. Step 2: Convert to fraction form
    302,495.20/418,019.12 = 226,912.48/x
  3. Step 3: Cross multiply
    302,495.20x = 418,019.12 × 226,912.48
  4. Step 4: Simplify right side
    302,495.20x = 94,853,755,206.62
  5. Step 5: Solve for x
    x = 94,853,755,206.62/302,495.20
  6. Step 6: Final answer
    x = 313,571.11

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1.5x scale

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.