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Finding the Fourth Proportional to 347,151.30, 520,722.09 and 136,791.06

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Solution

The fourth proportional to 347,151.30, 520,722.09 and 136,791.06 is: 205,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,151.30 : 520,722.09 = 136,791.06 : x
  2. Step 2: Convert to fraction form
    347,151.30/520,722.09 = 136,791.06/x
  3. Step 3: Cross multiply
    347,151.30x = 520,722.09 × 136,791.06
  4. Step 4: Simplify right side
    347,151.30x = 71,230,126,656.52
  5. Step 5: Solve for x
    x = 71,230,126,656.52/347,151.30
  6. Step 6: Final answer
    x = 205,184.67

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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.