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Finding the Fourth Proportional to 347,357.70, 520,906.95 and 136,952.10

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Solution

The fourth proportional to 347,357.70, 520,906.95 and 136,952.10 is: 205,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,357.70 : 520,906.95 = 136,952.10 : x
  2. Step 2: Convert to fraction form
    347,357.70/520,906.95 = 136,952.10/x
  3. Step 3: Cross multiply
    347,357.70x = 520,906.95 × 136,952.10
  4. Step 4: Simplify right side
    347,357.70x = 71,339,300,707.10
  5. Step 5: Solve for x
    x = 71,339,300,707.10/347,357.70
  6. Step 6: Final answer
    x = 205,377.05

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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.