Home / 281,788.50-388,907.91-174,393.12

Finding the Fourth Proportional to 281,788.50, 388,907.91 and 174,393.12

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Solution

The fourth proportional to 281,788.50, 388,907.91 and 174,393.12 is: 240,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,788.50 : 388,907.91 = 174,393.12 : x
  2. Step 2: Convert to fraction form
    281,788.50/388,907.91 = 174,393.12/x
  3. Step 3: Cross multiply
    281,788.50x = 388,907.91 × 174,393.12
  4. Step 4: Simplify right side
    281,788.50x = 67,822,863,817.58
  5. Step 5: Solve for x
    x = 67,822,863,817.58/281,788.50
  6. Step 6: Final answer
    x = 240,687.12

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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.