Home / 217,852.33-300,664.40-122,359.02

Finding the Fourth Proportional to 217,852.33, 300,664.40 and 122,359.02

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Solution

The fourth proportional to 217,852.33, 300,664.40 and 122,359.02 is: 168,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,852.33 : 300,664.40 = 122,359.02 : x
  2. Step 2: Convert to fraction form
    217,852.33/300,664.40 = 122,359.02/x
  3. Step 3: Cross multiply
    217,852.33x = 300,664.40 × 122,359.02
  4. Step 4: Simplify right side
    217,852.33x = 36,789,000,581.23
  5. Step 5: Solve for x
    x = 36,789,000,581.23/217,852.33
  6. Step 6: Final answer
    x = 168,871.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.