Home / 217,669.41-326,630.21-91,298.39

Finding the Fourth Proportional to 217,669.41, 326,630.21 and 91,298.39

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Solution

The fourth proportional to 217,669.41, 326,630.21 and 91,298.39 is: 137,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,669.41 : 326,630.21 = 91,298.39 : x
  2. Step 2: Convert to fraction form
    217,669.41/326,630.21 = 91,298.39/x
  3. Step 3: Cross multiply
    217,669.41x = 326,630.21 × 91,298.39
  4. Step 4: Simplify right side
    217,669.41x = 29,820,810,208.72
  5. Step 5: Solve for x
    x = 29,820,810,208.72/217,669.41
  6. Step 6: Final answer
    x = 137,000.46

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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.