Home / 347,979.25-480,446.73-217,356.58

Finding the Fourth Proportional to 347,979.25, 480,446.73 and 217,356.58

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Solution

The fourth proportional to 347,979.25, 480,446.73 and 217,356.58 is: 300,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,979.25 : 480,446.73 = 217,356.58 : x
  2. Step 2: Convert to fraction form
    347,979.25/480,446.73 = 217,356.58/x
  3. Step 3: Cross multiply
    347,979.25x = 480,446.73 × 217,356.58
  4. Step 4: Simplify right side
    347,979.25x = 104,428,258,705.54
  5. Step 5: Solve for x
    x = 104,428,258,705.54/347,979.25
  6. Step 6: Final answer
    x = 300,099.10

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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.