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Finding the Fourth Proportional to 302,707.80, 454,061.70 and 270,048.60

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Solution

The fourth proportional to 302,707.80, 454,061.70 and 270,048.60 is: 405,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,707.80 : 454,061.70 = 270,048.60 : x
  2. Step 2: Convert to fraction form
    302,707.80/454,061.70 = 270,048.60/x
  3. Step 3: Cross multiply
    302,707.80x = 454,061.70 × 270,048.60
  4. Step 4: Simplify right side
    302,707.80x = 122,618,726,398.62
  5. Step 5: Solve for x
    x = 122,618,726,398.62/302,707.80
  6. Step 6: Final answer
    x = 405,072.90

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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.