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Finding the Fourth Proportional to 341,873.20, 512,809.80 and 339,540.40

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Solution

The fourth proportional to 341,873.20, 512,809.80 and 339,540.40 is: 509,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,873.20 : 512,809.80 = 339,540.40 : x
  2. Step 2: Convert to fraction form
    341,873.20/512,809.80 = 339,540.40/x
  3. Step 3: Cross multiply
    341,873.20x = 512,809.80 × 339,540.40
  4. Step 4: Simplify right side
    341,873.20x = 174,119,644,615.92
  5. Step 5: Solve for x
    x = 174,119,644,615.92/341,873.20
  6. Step 6: Final answer
    x = 509,310.60

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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.