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Finding the Fourth Proportional to 228,873.60, 315,813.60 and 132,105.60

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Solution

The fourth proportional to 228,873.60, 315,813.60 and 132,105.60 is: 182,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,873.60 : 315,813.60 = 132,105.60 : x
  2. Step 2: Convert to fraction form
    228,873.60/315,813.60 = 132,105.60/x
  3. Step 3: Cross multiply
    228,873.60x = 315,813.60 × 132,105.60
  4. Step 4: Simplify right side
    228,873.60x = 41,720,745,116.16
  5. Step 5: Solve for x
    x = 41,720,745,116.16/228,873.60
  6. Step 6: Final answer
    x = 182,287.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.