Home / 399,726.45-551,629.31-238,550.22

Finding the Fourth Proportional to 399,726.45, 551,629.31 and 238,550.22

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Solution

The fourth proportional to 399,726.45, 551,629.31 and 238,550.22 is: 329,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,726.45 : 551,629.31 = 238,550.22 : x
  2. Step 2: Convert to fraction form
    399,726.45/551,629.31 = 238,550.22/x
  3. Step 3: Cross multiply
    399,726.45x = 551,629.31 × 238,550.22
  4. Step 4: Simplify right side
    399,726.45x = 131,591,292,066.20
  5. Step 5: Solve for x
    x = 131,591,292,066.20/399,726.45
  6. Step 6: Final answer
    x = 329,203.36

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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.