Home / 217,828.93-326,871.40-91,459.46

Finding the Fourth Proportional to 217,828.93, 326,871.40 and 91,459.46

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Solution

The fourth proportional to 217,828.93, 326,871.40 and 91,459.46 is: 137,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,828.93 : 326,871.40 = 91,459.46 : x
  2. Step 2: Convert to fraction form
    217,828.93/326,871.40 = 91,459.46/x
  3. Step 3: Cross multiply
    217,828.93x = 326,871.40 × 91,459.46
  4. Step 4: Simplify right side
    217,828.93x = 29,895,481,733.44
  5. Step 5: Solve for x
    x = 29,895,481,733.44/217,828.93
  6. Step 6: Final answer
    x = 137,242.94

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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.