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Finding the Fourth Proportional to 341,447.60, 512,171.40 and 270,945.20

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Solution

The fourth proportional to 341,447.60, 512,171.40 and 270,945.20 is: 406,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,447.60 : 512,171.40 = 270,945.20 : x
  2. Step 2: Convert to fraction form
    341,447.60/512,171.40 = 270,945.20/x
  3. Step 3: Cross multiply
    341,447.60x = 512,171.40 × 270,945.20
  4. Step 4: Simplify right side
    341,447.60x = 138,770,382,407.28
  5. Step 5: Solve for x
    x = 138,770,382,407.28/341,447.60
  6. Step 6: Final answer
    x = 406,417.80

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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.