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Finding the Fourth Proportional to 347,112.38, 520,130.03 and 240,703.90

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Solution

The fourth proportional to 347,112.38, 520,130.03 and 240,703.90 is: 360,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,112.38 : 520,130.03 = 240,703.90 : x
  2. Step 2: Convert to fraction form
    347,112.38/520,130.03 = 240,703.90/x
  3. Step 3: Cross multiply
    347,112.38x = 520,130.03 × 240,703.90
  4. Step 4: Simplify right side
    347,112.38x = 125,197,324,224.27
  5. Step 5: Solve for x
    x = 125,197,324,224.27/347,112.38
  6. Step 6: Final answer
    x = 360,682.39

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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.