Home / 557,936.51-836,431.82-221,215.05

Finding the Fourth Proportional to 557,936.51, 836,431.82 and 221,215.05

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Solution

The fourth proportional to 557,936.51, 836,431.82 and 221,215.05 is: 331,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,936.51 : 836,431.82 = 221,215.05 : x
  2. Step 2: Convert to fraction form
    557,936.51/836,431.82 = 221,215.05/x
  3. Step 3: Cross multiply
    557,936.51x = 836,431.82 × 221,215.05
  4. Step 4: Simplify right side
    557,936.51x = 185,031,306,606.37
  5. Step 5: Solve for x
    x = 185,031,306,606.37/557,936.51
  6. Step 6: Final answer
    x = 331,635.06

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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.