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Finding the Fourth Proportional to 422,901.48, 634,290.48 and 123,301.56

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Solution

The fourth proportional to 422,901.48, 634,290.48 and 123,301.56 is: 184,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,901.48 : 634,290.48 = 123,301.56 : x
  2. Step 2: Convert to fraction form
    422,901.48/634,290.48 = 123,301.56/x
  3. Step 3: Cross multiply
    422,901.48x = 634,290.48 × 123,301.56
  4. Step 4: Simplify right side
    422,901.48x = 78,209,005,677.15
  5. Step 5: Solve for x
    x = 78,209,005,677.15/422,901.48
  6. Step 6: Final answer
    x = 184,934.34

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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.