Home / 347,836.38-521,729.05-111,115.50

Finding the Fourth Proportional to 347,836.38, 521,729.05 and 111,115.50

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Solution

The fourth proportional to 347,836.38, 521,729.05 and 111,115.50 is: 166,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,836.38 : 521,729.05 = 111,115.50 : x
  2. Step 2: Convert to fraction form
    347,836.38/521,729.05 = 111,115.50/x
  3. Step 3: Cross multiply
    347,836.38x = 521,729.05 × 111,115.50
  4. Step 4: Simplify right side
    347,836.38x = 57,972,184,255.28
  5. Step 5: Solve for x
    x = 57,972,184,255.28/347,836.38
  6. Step 6: Final answer
    x = 166,665.10

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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.