Home / 215,985.11-323,955.78-58,229.51

Finding the Fourth Proportional to 215,985.11, 323,955.78 and 58,229.51

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Solution

The fourth proportional to 215,985.11, 323,955.78 and 58,229.51 is: 87,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,985.11 : 323,955.78 = 58,229.51 : x
  2. Step 2: Convert to fraction form
    215,985.11/323,955.78 = 58,229.51/x
  3. Step 3: Cross multiply
    215,985.11x = 323,955.78 × 58,229.51
  4. Step 4: Simplify right side
    215,985.11x = 18,863,786,331.07
  5. Step 5: Solve for x
    x = 18,863,786,331.07/215,985.11
  6. Step 6: Final answer
    x = 87,338.36

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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.