Home / 412,261.77-618,376.48-172,313.70

Finding the Fourth Proportional to 412,261.77, 618,376.48 and 172,313.70

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Solution

The fourth proportional to 412,261.77, 618,376.48 and 172,313.70 is: 258,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,261.77 : 618,376.48 = 172,313.70 : x
  2. Step 2: Convert to fraction form
    412,261.77/618,376.48 = 172,313.70/x
  3. Step 3: Cross multiply
    412,261.77x = 618,376.48 × 172,313.70
  4. Step 4: Simplify right side
    412,261.77x = 106,554,739,261.78
  5. Step 5: Solve for x
    x = 106,554,739,261.78/412,261.77
  6. Step 6: Final answer
    x = 258,463.79

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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.