Home / 228,377.12-315,161.03-126,409.59

Finding the Fourth Proportional to 228,377.12, 315,161.03 and 126,409.59

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Solution

The fourth proportional to 228,377.12, 315,161.03 and 126,409.59 is: 174,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,377.12 : 315,161.03 = 126,409.59 : x
  2. Step 2: Convert to fraction form
    228,377.12/315,161.03 = 126,409.59/x
  3. Step 3: Cross multiply
    228,377.12x = 315,161.03 × 126,409.59
  4. Step 4: Simplify right side
    228,377.12x = 39,839,376,902.30
  5. Step 5: Solve for x
    x = 39,839,376,902.30/228,377.12
  6. Step 6: Final answer
    x = 174,445.57

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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.