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Finding the Fourth Proportional to 394,810.16, 544,841.28 and 225,055.22

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Solution

The fourth proportional to 394,810.16, 544,841.28 and 225,055.22 is: 310,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,810.16 : 544,841.28 = 225,055.22 : x
  2. Step 2: Convert to fraction form
    394,810.16/544,841.28 = 225,055.22/x
  3. Step 3: Cross multiply
    394,810.16x = 544,841.28 × 225,055.22
  4. Step 4: Simplify right side
    394,810.16x = 122,619,374,135.48
  5. Step 5: Solve for x
    x = 122,619,374,135.48/394,810.16
  6. Step 6: Final answer
    x = 310,578.06

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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.