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Finding the Fourth Proportional to 422,468.32, 633,341.63 and 156,179.20

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Solution

The fourth proportional to 422,468.32, 633,341.63 and 156,179.20 is: 234,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,468.32 : 633,341.63 = 156,179.20 : x
  2. Step 2: Convert to fraction form
    422,468.32/633,341.63 = 156,179.20/x
  3. Step 3: Cross multiply
    422,468.32x = 633,341.63 × 156,179.20
  4. Step 4: Simplify right side
    422,468.32x = 98,914,789,110.88
  5. Step 5: Solve for x
    x = 98,914,789,110.88/422,468.32
  6. Step 6: Final answer
    x = 234,135.40

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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.