Home / 215,040.49-322,359.15-72,786.22

Finding the Fourth Proportional to 215,040.49, 322,359.15 and 72,786.22

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Solution

The fourth proportional to 215,040.49, 322,359.15 and 72,786.22 is: 109,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,040.49 : 322,359.15 = 72,786.22 : x
  2. Step 2: Convert to fraction form
    215,040.49/322,359.15 = 72,786.22/x
  3. Step 3: Cross multiply
    215,040.49x = 322,359.15 × 72,786.22
  4. Step 4: Simplify right side
    215,040.49x = 23,463,304,010.91
  5. Step 5: Solve for x
    x = 23,463,304,010.91/215,040.49
  6. Step 6: Final answer
    x = 109,111.10

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1.5x scale

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.