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Finding the Fourth Proportional to 172,154.40, 258,231.60 and 104,794.80

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Solution

The fourth proportional to 172,154.40, 258,231.60 and 104,794.80 is: 157,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,154.40 : 258,231.60 = 104,794.80 : x
  2. Step 2: Convert to fraction form
    172,154.40/258,231.60 = 104,794.80/x
  3. Step 3: Cross multiply
    172,154.40x = 258,231.60 × 104,794.80
  4. Step 4: Simplify right side
    172,154.40x = 27,061,328,875.68
  5. Step 5: Solve for x
    x = 27,061,328,875.68/172,154.40
  6. Step 6: Final answer
    x = 157,192.20

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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.