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Finding the Fourth Proportional to 422,984.70, 634,329.48 and 170,199.69

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Solution

The fourth proportional to 422,984.70, 634,329.48 and 170,199.69 is: 255,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,984.70 : 634,329.48 = 170,199.69 : x
  2. Step 2: Convert to fraction form
    422,984.70/634,329.48 = 170,199.69/x
  3. Step 3: Cross multiply
    422,984.70x = 634,329.48 × 170,199.69
  4. Step 4: Simplify right side
    422,984.70x = 107,962,680,853.86
  5. Step 5: Solve for x
    x = 107,962,680,853.86/422,984.70
  6. Step 6: Final answer
    x = 255,240.16

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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.