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Finding the Fourth Proportional to 281,950.44, 389,092.13 and 154,626.95

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Solution

The fourth proportional to 281,950.44, 389,092.13 and 154,626.95 is: 213,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,950.44 : 389,092.13 = 154,626.95 : x
  2. Step 2: Convert to fraction form
    281,950.44/389,092.13 = 154,626.95/x
  3. Step 3: Cross multiply
    281,950.44x = 389,092.13 × 154,626.95
  4. Step 4: Simplify right side
    281,950.44x = 60,164,126,612.31
  5. Step 5: Solve for x
    x = 60,164,126,612.31/281,950.44
  6. Step 6: Final answer
    x = 213,385.47

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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.