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Finding the Fourth Proportional to 348,639.75, 522,900.43 and 159,055.56

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Solution

The fourth proportional to 348,639.75, 522,900.43 and 159,055.56 is: 238,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,639.75 : 522,900.43 = 159,055.56 : x
  2. Step 2: Convert to fraction form
    348,639.75/522,900.43 = 159,055.56/x
  3. Step 3: Cross multiply
    348,639.75x = 522,900.43 × 159,055.56
  4. Step 4: Simplify right side
    348,639.75x = 83,170,220,320.25
  5. Step 5: Solve for x
    x = 83,170,220,320.25/348,639.75
  6. Step 6: Final answer
    x = 238,556.33

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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.