Home / 217,628.49-326,393.87-91,411.26

Finding the Fourth Proportional to 217,628.49, 326,393.87 and 91,411.26

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Solution

The fourth proportional to 217,628.49, 326,393.87 and 91,411.26 is: 137,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,628.49 : 326,393.87 = 91,411.26 : x
  2. Step 2: Convert to fraction form
    217,628.49/326,393.87 = 91,411.26/x
  3. Step 3: Cross multiply
    217,628.49x = 326,393.87 × 91,411.26
  4. Step 4: Simplify right side
    217,628.49x = 29,836,073,281.01
  5. Step 5: Solve for x
    x = 29,836,073,281.01/217,628.49
  6. Step 6: Final answer
    x = 137,096.36

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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.