Home / 281,452.28-388,412.94-154,139.96

Finding the Fourth Proportional to 281,452.28, 388,412.94 and 154,139.96

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Solution

The fourth proportional to 281,452.28, 388,412.94 and 154,139.96 is: 212,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,452.28 : 388,412.94 = 154,139.96 : x
  2. Step 2: Convert to fraction form
    281,452.28/388,412.94 = 154,139.96/x
  3. Step 3: Cross multiply
    281,452.28x = 388,412.94 × 154,139.96
  4. Step 4: Simplify right side
    281,452.28x = 59,869,955,035.08
  5. Step 5: Solve for x
    x = 59,869,955,035.08/281,452.28
  6. Step 6: Final answer
    x = 212,717.96

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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.