Home / 400,835.54-553,153.12-219,553.97

Finding the Fourth Proportional to 400,835.54, 553,153.12 and 219,553.97

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Solution

The fourth proportional to 400,835.54, 553,153.12 and 219,553.97 is: 302,984.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,835.54 : 553,153.12 = 219,553.97 : x
  2. Step 2: Convert to fraction form
    400,835.54/553,153.12 = 219,553.97/x
  3. Step 3: Cross multiply
    400,835.54x = 553,153.12 × 219,553.97
  4. Step 4: Simplify right side
    400,835.54x = 121,446,960,199.24
  5. Step 5: Solve for x
    x = 121,446,960,199.24/400,835.54
  6. Step 6: Final answer
    x = 302,984.51

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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.