Home / 345,759.84-518,873.04-135,371.52

Finding the Fourth Proportional to 345,759.84, 518,873.04 and 135,371.52

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Solution

The fourth proportional to 345,759.84, 518,873.04 and 135,371.52 is: 203,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,759.84 : 518,873.04 = 135,371.52 : x
  2. Step 2: Convert to fraction form
    345,759.84/518,873.04 = 135,371.52/x
  3. Step 3: Cross multiply
    345,759.84x = 518,873.04 × 135,371.52
  4. Step 4: Simplify right side
    345,759.84x = 70,240,632,111.82
  5. Step 5: Solve for x
    x = 70,240,632,111.82/345,759.84
  6. Step 6: Final answer
    x = 203,148.61

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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.