Home / 412,261.37-618,375.87-172,313.30

Finding the Fourth Proportional to 412,261.37, 618,375.87 and 172,313.30

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Solution

The fourth proportional to 412,261.37, 618,375.87 and 172,313.30 is: 258,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,261.37 : 618,375.87 = 172,313.30 : x
  2. Step 2: Convert to fraction form
    412,261.37/618,375.87 = 172,313.30/x
  3. Step 3: Cross multiply
    412,261.37x = 618,375.87 × 172,313.30
  4. Step 4: Simplify right side
    412,261.37x = 106,554,386,800.07
  5. Step 5: Solve for x
    x = 106,554,386,800.07/412,261.37
  6. Step 6: Final answer
    x = 258,463.19

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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.