Home / 400,975.49-553,346.17-219,694.29

Finding the Fourth Proportional to 400,975.49, 553,346.17 and 219,694.29

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Solution

The fourth proportional to 400,975.49, 553,346.17 and 219,694.29 is: 303,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,975.49 : 553,346.17 = 219,694.29 : x
  2. Step 2: Convert to fraction form
    400,975.49/553,346.17 = 219,694.29/x
  3. Step 3: Cross multiply
    400,975.49x = 553,346.17 × 219,694.29
  4. Step 4: Simplify right side
    400,975.49x = 121,566,993,393.13
  5. Step 5: Solve for x
    x = 121,566,993,393.13/400,975.49
  6. Step 6: Final answer
    x = 303,178.11

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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.