Home / 281,882.04-388,994.40-154,557.36

Finding the Fourth Proportional to 281,882.04, 388,994.40 and 154,557.36

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Solution

The fourth proportional to 281,882.04, 388,994.40 and 154,557.36 is: 213,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,882.04 : 388,994.40 = 154,557.36 : x
  2. Step 2: Convert to fraction form
    281,882.04/388,994.40 = 154,557.36/x
  3. Step 3: Cross multiply
    281,882.04x = 388,994.40 × 154,557.36
  4. Step 4: Simplify right side
    281,882.04x = 60,121,947,518.78
  5. Step 5: Solve for x
    x = 60,121,947,518.78/281,882.04
  6. Step 6: Final answer
    x = 213,287.61

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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.