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Finding the Fourth Proportional to 172,287.33, 258,410.48 and 45,937.05

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Solution

The fourth proportional to 172,287.33, 258,410.48 and 45,937.05 is: 68,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,287.33 : 258,410.48 = 45,937.05 : x
  2. Step 2: Convert to fraction form
    172,287.33/258,410.48 = 45,937.05/x
  3. Step 3: Cross multiply
    172,287.33x = 258,410.48 × 45,937.05
  4. Step 4: Simplify right side
    172,287.33x = 11,870,614,910.60
  5. Step 5: Solve for x
    x = 11,870,614,910.60/172,287.33
  6. Step 6: Final answer
    x = 68,900.10

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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.