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Finding the Fourth Proportional to 281,218.58, 388,074.50 and 166,498.70

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Solution

The fourth proportional to 281,218.58, 388,074.50 and 166,498.70 is: 229,763.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,218.58 : 388,074.50 = 166,498.70 : x
  2. Step 2: Convert to fraction form
    281,218.58/388,074.50 = 166,498.70/x
  3. Step 3: Cross multiply
    281,218.58x = 388,074.50 × 166,498.70
  4. Step 4: Simplify right side
    281,218.58x = 64,613,899,753.15
  5. Step 5: Solve for x
    x = 64,613,899,753.15/281,218.58
  6. Step 6: Final answer
    x = 229,763.98

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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.