Home / 281,835.08-388,947.31-154,516.04

Finding the Fourth Proportional to 281,835.08, 388,947.31 and 154,516.04

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Solution

The fourth proportional to 281,835.08, 388,947.31 and 154,516.04 is: 213,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.08 : 388,947.31 = 154,516.04 : x
  2. Step 2: Convert to fraction form
    281,835.08/388,947.31 = 154,516.04/x
  3. Step 3: Cross multiply
    281,835.08x = 388,947.31 × 154,516.04
  4. Step 4: Simplify right side
    281,835.08x = 60,098,598,109.85
  5. Step 5: Solve for x
    x = 60,098,598,109.85/281,835.08
  6. Step 6: Final answer
    x = 213,240.30

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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.