Home / 217,887.58-326,729.28-91,500.82

Finding the Fourth Proportional to 217,887.58, 326,729.28 and 91,500.82

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Solution

The fourth proportional to 217,887.58, 326,729.28 and 91,500.82 is: 137,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,887.58 : 326,729.28 = 91,500.82 : x
  2. Step 2: Convert to fraction form
    217,887.58/326,729.28 = 91,500.82/x
  3. Step 3: Cross multiply
    217,887.58x = 326,729.28 × 91,500.82
  4. Step 4: Simplify right side
    217,887.58x = 29,895,997,038.01
  5. Step 5: Solve for x
    x = 29,895,997,038.01/217,887.58
  6. Step 6: Final answer
    x = 137,208.36

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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.