Home / 228,330.72-315,089.96-126,360.43

Finding the Fourth Proportional to 228,330.72, 315,089.96 and 126,360.43

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Solution

The fourth proportional to 228,330.72, 315,089.96 and 126,360.43 is: 174,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,330.72 : 315,089.96 = 126,360.43 : x
  2. Step 2: Convert to fraction form
    228,330.72/315,089.96 = 126,360.43/x
  3. Step 3: Cross multiply
    228,330.72x = 315,089.96 × 126,360.43
  4. Step 4: Simplify right side
    228,330.72x = 39,814,901,414.76
  5. Step 5: Solve for x
    x = 39,814,901,414.76/228,330.72
  6. Step 6: Final answer
    x = 174,373.83

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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.