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Finding the Fourth Proportional to 239,837.87, 359,694.11 and 71,312.81

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Solution

The fourth proportional to 239,837.87, 359,694.11 and 71,312.81 is: 106,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,837.87 : 359,694.11 = 71,312.81 : x
  2. Step 2: Convert to fraction form
    239,837.87/359,694.11 = 71,312.81/x
  3. Step 3: Cross multiply
    239,837.87x = 359,694.11 × 71,312.81
  4. Step 4: Simplify right side
    239,837.87x = 25,650,795,569.51
  5. Step 5: Solve for x
    x = 25,650,795,569.51/239,837.87
  6. Step 6: Final answer
    x = 106,950.57

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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.