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Finding the Fourth Proportional to 188,576.78, 260,214.15 and 107,999.50

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Solution

The fourth proportional to 188,576.78, 260,214.15 and 107,999.50 is: 149,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,576.78 : 260,214.15 = 107,999.50 : x
  2. Step 2: Convert to fraction form
    188,576.78/260,214.15 = 107,999.50/x
  3. Step 3: Cross multiply
    188,576.78x = 260,214.15 × 107,999.50
  4. Step 4: Simplify right side
    188,576.78x = 28,102,998,092.93
  5. Step 5: Solve for x
    x = 28,102,998,092.93/188,576.78
  6. Step 6: Final answer
    x = 149,026.82

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1.5x scale

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.