Home / 228,739.83-315,656.25-126,764.49

Finding the Fourth Proportional to 228,739.83, 315,656.25 and 126,764.49

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Solution

The fourth proportional to 228,739.83, 315,656.25 and 126,764.49 is: 174,932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,739.83 : 315,656.25 = 126,764.49 : x
  2. Step 2: Convert to fraction form
    228,739.83/315,656.25 = 126,764.49/x
  3. Step 3: Cross multiply
    228,739.83x = 315,656.25 × 126,764.49
  4. Step 4: Simplify right side
    228,739.83x = 40,014,003,546.56
  5. Step 5: Solve for x
    x = 40,014,003,546.56/228,739.83
  6. Step 6: Final answer
    x = 174,932.38

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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.