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Finding the Fourth Proportional to 306,151.04, 422,493.45 and 168,335.78

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Solution

The fourth proportional to 306,151.04, 422,493.45 and 168,335.78 is: 232,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,151.04 : 422,493.45 = 168,335.78 : x
  2. Step 2: Convert to fraction form
    306,151.04/422,493.45 = 168,335.78/x
  3. Step 3: Cross multiply
    306,151.04x = 422,493.45 × 168,335.78
  4. Step 4: Simplify right side
    306,151.04x = 71,120,764,450.64
  5. Step 5: Solve for x
    x = 71,120,764,450.64/306,151.04
  6. Step 6: Final answer
    x = 232,306.13

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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.