Home / 259,039.75-388,541.79-159,215.35

Finding the Fourth Proportional to 259,039.75, 388,541.79 and 159,215.35

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Solution

The fourth proportional to 259,039.75, 388,541.79 and 159,215.35 is: 238,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,039.75 : 388,541.79 = 159,215.35 : x
  2. Step 2: Convert to fraction form
    259,039.75/388,541.79 = 159,215.35/x
  3. Step 3: Cross multiply
    259,039.75x = 388,541.79 × 159,215.35
  4. Step 4: Simplify right side
    259,039.75x = 61,861,817,084.48
  5. Step 5: Solve for x
    x = 61,861,817,084.48/259,039.75
  6. Step 6: Final answer
    x = 238,812.06

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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.