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Finding the Fourth Proportional to 193,380, 266,852.08 and 107,340.67

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Solution

The fourth proportional to 193,380, 266,852.08 and 107,340.67 is: 148,123.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,380 : 266,852.08 = 107,340.67 : x
  2. Step 2: Convert to fraction form
    193,380/266,852.08 = 107,340.67/x
  3. Step 3: Cross multiply
    193,380x = 266,852.08 × 107,340.67
  4. Step 4: Simplify right side
    193,380x = 28,644,081,058.09
  5. Step 5: Solve for x
    x = 28,644,081,058.09/193,380
  6. Step 6: Final answer
    x = 148,123.29

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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.