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Finding the Fourth Proportional to 478,170.88, 659,875.75 and 263,310.41

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Solution

The fourth proportional to 478,170.88, 659,875.75 and 263,310.41 is: 363,368.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,170.88 : 659,875.75 = 263,310.41 : x
  2. Step 2: Convert to fraction form
    478,170.88/659,875.75 = 263,310.41/x
  3. Step 3: Cross multiply
    478,170.88x = 659,875.75 × 263,310.41
  4. Step 4: Simplify right side
    478,170.88x = 173,752,155,272.97
  5. Step 5: Solve for x
    x = 173,752,155,272.97/478,170.88
  6. Step 6: Final answer
    x = 363,368.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.