Home / 281,568.12-388,564.06-154,248.20

Finding the Fourth Proportional to 281,568.12, 388,564.06 and 154,248.20

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Solution

The fourth proportional to 281,568.12, 388,564.06 and 154,248.20 is: 212,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,568.12 : 388,564.06 = 154,248.20 : x
  2. Step 2: Convert to fraction form
    281,568.12/388,564.06 = 154,248.20/x
  3. Step 3: Cross multiply
    281,568.12x = 388,564.06 × 154,248.20
  4. Step 4: Simplify right side
    281,568.12x = 59,935,306,839.69
  5. Step 5: Solve for x
    x = 59,935,306,839.69/281,568.12
  6. Step 6: Final answer
    x = 212,862.55

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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.