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Finding the Fourth Proportional to 640,898.34, 961,350.75 and 167,584.74

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Solution

The fourth proportional to 640,898.34, 961,350.75 and 167,584.74 is: 251,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,898.34 : 961,350.75 = 167,584.74 : x
  2. Step 2: Convert to fraction form
    640,898.34/961,350.75 = 167,584.74/x
  3. Step 3: Cross multiply
    640,898.34x = 961,350.75 × 167,584.74
  4. Step 4: Simplify right side
    640,898.34x = 161,107,715,487.56
  5. Step 5: Solve for x
    x = 161,107,715,487.56/640,898.34
  6. Step 6: Final answer
    x = 251,377.96

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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.