Home / 422,931.60-634,249.85-170,146.53

Finding the Fourth Proportional to 422,931.60, 634,249.85 and 170,146.53

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Solution

The fourth proportional to 422,931.60, 634,249.85 and 170,146.53 is: 255,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,931.60 : 634,249.85 = 170,146.53 : x
  2. Step 2: Convert to fraction form
    422,931.60/634,249.85 = 170,146.53/x
  3. Step 3: Cross multiply
    422,931.60x = 634,249.85 × 170,146.53
  4. Step 4: Simplify right side
    422,931.60x = 107,915,410,279.79
  5. Step 5: Solve for x
    x = 107,915,410,279.79/422,931.60
  6. Step 6: Final answer
    x = 255,160.43

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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.