Home / 518,669.82-777,977.19-158,840.55

Finding the Fourth Proportional to 518,669.82, 777,977.19 and 158,840.55

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Solution

The fourth proportional to 518,669.82, 777,977.19 and 158,840.55 is: 238,252.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,669.82 : 777,977.19 = 158,840.55 : x
  2. Step 2: Convert to fraction form
    518,669.82/777,977.19 = 158,840.55/x
  3. Step 3: Cross multiply
    518,669.82x = 777,977.19 × 158,840.55
  4. Step 4: Simplify right side
    518,669.82x = 123,574,324,747.05
  5. Step 5: Solve for x
    x = 123,574,324,747.05/518,669.82
  6. Step 6: Final answer
    x = 238,252.39

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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.