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Finding the Fourth Proportional to 188,450.42, 260,079.86 and 107,889.44

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Solution

The fourth proportional to 188,450.42, 260,079.86 and 107,889.44 is: 148,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,450.42 : 260,079.86 = 107,889.44 : x
  2. Step 2: Convert to fraction form
    188,450.42/260,079.86 = 107,889.44/x
  3. Step 3: Cross multiply
    188,450.42x = 260,079.86 × 107,889.44
  4. Step 4: Simplify right side
    188,450.42x = 28,059,869,420.00
  5. Step 5: Solve for x
    x = 28,059,869,420.00/188,450.42
  6. Step 6: Final answer
    x = 148,897.89

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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.