Home / 281,764.14-388,830.29-154,439.97

Finding the Fourth Proportional to 281,764.14, 388,830.29 and 154,439.97

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Solution

The fourth proportional to 281,764.14, 388,830.29 and 154,439.97 is: 213,124.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,764.14 : 388,830.29 = 154,439.97 : x
  2. Step 2: Convert to fraction form
    281,764.14/388,830.29 = 154,439.97/x
  3. Step 3: Cross multiply
    281,764.14x = 388,830.29 × 154,439.97
  4. Step 4: Simplify right side
    281,764.14x = 60,050,937,550.49
  5. Step 5: Solve for x
    x = 60,050,937,550.49/281,764.14
  6. Step 6: Final answer
    x = 213,124.84

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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.