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Finding the Fourth Proportional to 347,107.25, 520,461.61 and 136,630.37

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Solution

The fourth proportional to 347,107.25, 520,461.61 and 136,630.37 is: 204,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,107.25 : 520,461.61 = 136,630.37 : x
  2. Step 2: Convert to fraction form
    347,107.25/520,461.61 = 136,630.37/x
  3. Step 3: Cross multiply
    347,107.25x = 520,461.61 × 136,630.37
  4. Step 4: Simplify right side
    347,107.25x = 71,110,862,345.10
  5. Step 5: Solve for x
    x = 71,110,862,345.10/347,107.25
  6. Step 6: Final answer
    x = 204,867.12

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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.