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Finding the Fourth Proportional to 422,701.52, 634,135.16 and 156,464.28

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Solution

The fourth proportional to 422,701.52, 634,135.16 and 156,464.28 is: 234,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,701.52 : 634,135.16 = 156,464.28 : x
  2. Step 2: Convert to fraction form
    422,701.52/634,135.16 = 156,464.28/x
  3. Step 3: Cross multiply
    422,701.52x = 634,135.16 × 156,464.28
  4. Step 4: Simplify right side
    422,701.52x = 99,219,501,232.08
  5. Step 5: Solve for x
    x = 99,219,501,232.08/422,701.52
  6. Step 6: Final answer
    x = 234,727.10

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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.