Home / 258,309.12-388,046.96-153,197.04

Finding the Fourth Proportional to 258,309.12, 388,046.96 and 153,197.04

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Solution

The fourth proportional to 258,309.12, 388,046.96 and 153,197.04 is: 230,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,309.12 : 388,046.96 = 153,197.04 : x
  2. Step 2: Convert to fraction form
    258,309.12/388,046.96 = 153,197.04/x
  3. Step 3: Cross multiply
    258,309.12x = 388,046.96 × 153,197.04
  4. Step 4: Simplify right side
    258,309.12x = 59,447,645,653.00
  5. Step 5: Solve for x
    x = 59,447,645,653.00/258,309.12
  6. Step 6: Final answer
    x = 230,141.49

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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.