Home / 217,947.71-300,902.02-172,808.03

Finding the Fourth Proportional to 217,947.71, 300,902.02 and 172,808.03

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Solution

The fourth proportional to 217,947.71, 300,902.02 and 172,808.03 is: 238,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,947.71 : 300,902.02 = 172,808.03 : x
  2. Step 2: Convert to fraction form
    217,947.71/300,902.02 = 172,808.03/x
  3. Step 3: Cross multiply
    217,947.71x = 300,902.02 × 172,808.03
  4. Step 4: Simplify right side
    217,947.71x = 51,998,283,362.69
  5. Step 5: Solve for x
    x = 51,998,283,362.69/217,947.71
  6. Step 6: Final answer
    x = 238,581.47

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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.