Home / 188,661.40-282,992.10-172,331.80

Finding the Fourth Proportional to 188,661.40, 282,992.10 and 172,331.80

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Solution

The fourth proportional to 188,661.40, 282,992.10 and 172,331.80 is: 258,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,661.40 : 282,992.10 = 172,331.80 : x
  2. Step 2: Convert to fraction form
    188,661.40/282,992.10 = 172,331.80/x
  3. Step 3: Cross multiply
    188,661.40x = 282,992.10 × 172,331.80
  4. Step 4: Simplify right side
    188,661.40x = 48,768,537,978.78
  5. Step 5: Solve for x
    x = 48,768,537,978.78/188,661.40
  6. Step 6: Final answer
    x = 258,497.70

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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.