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Finding the Fourth Proportional to 420,177.97, 629,868.03 and 167,613.49

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Solution

The fourth proportional to 420,177.97, 629,868.03 and 167,613.49 is: 251,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,177.97 : 629,868.03 = 167,613.49 : x
  2. Step 2: Convert to fraction form
    420,177.97/629,868.03 = 167,613.49/x
  3. Step 3: Cross multiply
    420,177.97x = 629,868.03 × 167,613.49
  4. Step 4: Simplify right side
    420,177.97x = 105,574,378,747.73
  5. Step 5: Solve for x
    x = 105,574,378,747.73/420,177.97
  6. Step 6: Final answer
    x = 251,261.10

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1.5x scale

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.