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Finding the Fourth Proportional to 283,925.66, 391,816.66 and 163,074.79

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Solution

The fourth proportional to 283,925.66, 391,816.66 and 163,074.79 is: 225,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,925.66 : 391,816.66 = 163,074.79 : x
  2. Step 2: Convert to fraction form
    283,925.66/391,816.66 = 163,074.79/x
  3. Step 3: Cross multiply
    283,925.66x = 391,816.66 × 163,074.79
  4. Step 4: Simplify right side
    283,925.66x = 63,895,419,548.00
  5. Step 5: Solve for x
    x = 63,895,419,548.00/283,925.66
  6. Step 6: Final answer
    x = 225,042.78

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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.