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Finding the Fourth Proportional to 228,393.97, 315,159.01 and 126,403.22

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Solution

The fourth proportional to 228,393.97, 315,159.01 and 126,403.22 is: 174,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,393.97 : 315,159.01 = 126,403.22 : x
  2. Step 2: Convert to fraction form
    228,393.97/315,159.01 = 126,403.22/x
  3. Step 3: Cross multiply
    228,393.97x = 315,159.01 × 126,403.22
  4. Step 4: Simplify right side
    228,393.97x = 39,837,113,676.01
  5. Step 5: Solve for x
    x = 39,837,113,676.01/228,393.97
  6. Step 6: Final answer
    x = 174,422.79

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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.