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Finding the Fourth Proportional to 341,770.32, 512,727.57 and 128,540.25

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Solution

The fourth proportional to 341,770.32, 512,727.57 and 128,540.25 is: 192,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,770.32 : 512,727.57 = 128,540.25 : x
  2. Step 2: Convert to fraction form
    341,770.32/512,727.57 = 128,540.25/x
  3. Step 3: Cross multiply
    341,770.32x = 512,727.57 × 128,540.25
  4. Step 4: Simplify right side
    341,770.32x = 65,906,130,029.69
  5. Step 5: Solve for x
    x = 65,906,130,029.69/341,770.32
  6. Step 6: Final answer
    x = 192,837.49

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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.