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Finding the Fourth Proportional to 341,458.60, 512,187.90 and 270,956.20

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Solution

The fourth proportional to 341,458.60, 512,187.90 and 270,956.20 is: 406,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,458.60 : 512,187.90 = 270,956.20 : x
  2. Step 2: Convert to fraction form
    341,458.60/512,187.90 = 270,956.20/x
  3. Step 3: Cross multiply
    341,458.60x = 512,187.90 × 270,956.20
  4. Step 4: Simplify right side
    341,458.60x = 138,780,487,069.98
  5. Step 5: Solve for x
    x = 138,780,487,069.98/341,458.60
  6. Step 6: Final answer
    x = 406,434.30

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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.