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Finding the Fourth Proportional to 641,259.44, 961,860.80 and 167,934.32

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Solution

The fourth proportional to 641,259.44, 961,860.80 and 167,934.32 is: 251,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,259.44 : 961,860.80 = 167,934.32 : x
  2. Step 2: Convert to fraction form
    641,259.44/961,860.80 = 167,934.32/x
  3. Step 3: Cross multiply
    641,259.44x = 961,860.80 × 167,934.32
  4. Step 4: Simplify right side
    641,259.44x = 161,529,439,382.66
  5. Step 5: Solve for x
    x = 161,529,439,382.66/641,259.44
  6. Step 6: Final answer
    x = 251,894.05

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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.