Home / 397,145.94-548,064.73-215,857.82

Finding the Fourth Proportional to 397,145.94, 548,064.73 and 215,857.82

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Solution

The fourth proportional to 397,145.94, 548,064.73 and 215,857.82 is: 297,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,145.94 : 548,064.73 = 215,857.82 : x
  2. Step 2: Convert to fraction form
    397,145.94/548,064.73 = 215,857.82/x
  3. Step 3: Cross multiply
    397,145.94x = 548,064.73 × 215,857.82
  4. Step 4: Simplify right side
    397,145.94x = 118,304,058,262.47
  5. Step 5: Solve for x
    x = 118,304,058,262.47/397,145.94
  6. Step 6: Final answer
    x = 297,885.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.