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Finding the Fourth Proportional to 239,837.86, 359,694.11 and 71,312.81

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Solution

The fourth proportional to 239,837.86, 359,694.11 and 71,312.81 is: 106,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,837.86 : 359,694.11 = 71,312.81 : x
  2. Step 2: Convert to fraction form
    239,837.86/359,694.11 = 71,312.81/x
  3. Step 3: Cross multiply
    239,837.86x = 359,694.11 × 71,312.81
  4. Step 4: Simplify right side
    239,837.86x = 25,650,798,802.07
  5. Step 5: Solve for x
    x = 25,650,798,802.07/239,837.86
  6. Step 6: Final answer
    x = 106,950.58

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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.