Home / 400,418.10-552,572.19-219,128.22

Finding the Fourth Proportional to 400,418.10, 552,572.19 and 219,128.22

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Solution

The fourth proportional to 400,418.10, 552,572.19 and 219,128.22 is: 302,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,418.10 : 552,572.19 = 219,128.22 : x
  2. Step 2: Convert to fraction form
    400,418.10/552,572.19 = 219,128.22/x
  3. Step 3: Cross multiply
    400,418.10x = 552,572.19 × 219,128.22
  4. Step 4: Simplify right side
    400,418.10x = 121,084,160,416.20
  5. Step 5: Solve for x
    x = 121,084,160,416.20/400,418.10
  6. Step 6: Final answer
    x = 302,394.32

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1.5x scale

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.