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Finding the Fourth Proportional to 258,573.68, 387,600.96 and 108,850.40

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Solution

The fourth proportional to 258,573.68, 387,600.96 and 108,850.40 is: 163,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,573.68 : 387,600.96 = 108,850.40 : x
  2. Step 2: Convert to fraction form
    258,573.68/387,600.96 = 108,850.40/x
  3. Step 3: Cross multiply
    258,573.68x = 387,600.96 × 108,850.40
  4. Step 4: Simplify right side
    258,573.68x = 42,190,519,536.38
  5. Step 5: Solve for x
    x = 42,190,519,536.38/258,573.68
  6. Step 6: Final answer
    x = 163,166.33

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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.