Home / 352,979.89-487,123.00-217,093.68

Finding the Fourth Proportional to 352,979.89, 487,123.00 and 217,093.68

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Solution

The fourth proportional to 352,979.89, 487,123.00 and 217,093.68 is: 299,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,979.89 : 487,123.00 = 217,093.68 : x
  2. Step 2: Convert to fraction form
    352,979.89/487,123.00 = 217,093.68/x
  3. Step 3: Cross multiply
    352,979.89x = 487,123.00 × 217,093.68
  4. Step 4: Simplify right side
    352,979.89x = 105,751,324,139.91
  5. Step 5: Solve for x
    x = 105,751,324,139.91/352,979.89
  6. Step 6: Final answer
    x = 299,595.89

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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.