Home / 258,864.12-388,446.84-101,084.76

Finding the Fourth Proportional to 258,864.12, 388,446.84 and 101,084.76

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Solution

The fourth proportional to 258,864.12, 388,446.84 and 101,084.76 is: 151,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,864.12 : 388,446.84 = 101,084.76 : x
  2. Step 2: Convert to fraction form
    258,864.12/388,446.84 = 101,084.76/x
  3. Step 3: Cross multiply
    258,864.12x = 388,446.84 × 101,084.76
  4. Step 4: Simplify right side
    258,864.12x = 39,266,055,594.16
  5. Step 5: Solve for x
    x = 39,266,055,594.16/258,864.12
  6. Step 6: Final answer
    x = 151,685.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.