Home / 400,865.80-553,173.42-219,568.36

Finding the Fourth Proportional to 400,865.80, 553,173.42 and 219,568.36

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Solution

The fourth proportional to 400,865.80, 553,173.42 and 219,568.36 is: 302,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,865.80 : 553,173.42 = 219,568.36 : x
  2. Step 2: Convert to fraction form
    400,865.80/553,173.42 = 219,568.36/x
  3. Step 3: Cross multiply
    400,865.80x = 553,173.42 × 219,568.36
  4. Step 4: Simplify right side
    400,865.80x = 121,459,380,624.99
  5. Step 5: Solve for x
    x = 121,459,380,624.99/400,865.80
  6. Step 6: Final answer
    x = 302,992.62

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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.