Home / 281,541.38-388,527.30-154,217.48

Finding the Fourth Proportional to 281,541.38, 388,527.30 and 154,217.48

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Solution

The fourth proportional to 281,541.38, 388,527.30 and 154,217.48 is: 212,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,541.38 : 388,527.30 = 154,217.48 : x
  2. Step 2: Convert to fraction form
    281,541.38/388,527.30 = 154,217.48/x
  3. Step 3: Cross multiply
    281,541.38x = 388,527.30 × 154,217.48
  4. Step 4: Simplify right side
    281,541.38x = 59,917,699,174.57
  5. Step 5: Solve for x
    x = 59,917,699,174.57/281,541.38
  6. Step 6: Final answer
    x = 212,820.23

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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.