Home / 400,470.12-552,626.28-219,181.68

Finding the Fourth Proportional to 400,470.12, 552,626.28 and 219,181.68

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Solution

The fourth proportional to 400,470.12, 552,626.28 and 219,181.68 is: 302,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,470.12 : 552,626.28 = 219,181.68 : x
  2. Step 2: Convert to fraction form
    400,470.12/552,626.28 = 219,181.68/x
  3. Step 3: Cross multiply
    400,470.12x = 552,626.28 × 219,181.68
  4. Step 4: Simplify right side
    400,470.12x = 121,125,556,462.55
  5. Step 5: Solve for x
    x = 121,125,556,462.55/400,470.12
  6. Step 6: Final answer
    x = 302,458.41

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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.