Home / 258,260.32-386,557.20-133,429.60

Finding the Fourth Proportional to 258,260.32, 386,557.20 and 133,429.60

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Solution

The fourth proportional to 258,260.32, 386,557.20 and 133,429.60 is: 199,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,260.32 : 386,557.20 = 133,429.60 : x
  2. Step 2: Convert to fraction form
    258,260.32/386,557.20 = 133,429.60/x
  3. Step 3: Cross multiply
    258,260.32x = 386,557.20 × 133,429.60
  4. Step 4: Simplify right side
    258,260.32x = 51,578,172,573.12
  5. Step 5: Solve for x
    x = 51,578,172,573.12/258,260.32
  6. Step 6: Final answer
    x = 199,713.89

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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.