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Finding the Fourth Proportional to 239,917.34, 360,109.29 and 115,345.82

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Solution

The fourth proportional to 239,917.34, 360,109.29 and 115,345.82 is: 173,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,917.34 : 360,109.29 = 115,345.82 : x
  2. Step 2: Convert to fraction form
    239,917.34/360,109.29 = 115,345.82/x
  3. Step 3: Cross multiply
    239,917.34x = 360,109.29 × 115,345.82
  4. Step 4: Simplify right side
    239,917.34x = 41,537,101,344.67
  5. Step 5: Solve for x
    x = 41,537,101,344.67/239,917.34
  6. Step 6: Final answer
    x = 173,130.88

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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.