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Finding the Fourth Proportional to 341,419.22, 512,184.46 and 128,203.64

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Solution

The fourth proportional to 341,419.22, 512,184.46 and 128,203.64 is: 192,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,419.22 : 512,184.46 = 128,203.64 : x
  2. Step 2: Convert to fraction form
    341,419.22/512,184.46 = 128,203.64/x
  3. Step 3: Cross multiply
    341,419.22x = 512,184.46 × 128,203.64
  4. Step 4: Simplify right side
    341,419.22x = 65,663,912,123.43
  5. Step 5: Solve for x
    x = 65,663,912,123.43/341,419.22
  6. Step 6: Final answer
    x = 192,326.35

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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.