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Finding the Fourth Proportional to 228,377.69, 315,161.83 and 126,410.17

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Solution

The fourth proportional to 228,377.69, 315,161.83 and 126,410.17 is: 174,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,377.69 : 315,161.83 = 126,410.17 : x
  2. Step 2: Convert to fraction form
    228,377.69/315,161.83 = 126,410.17/x
  3. Step 3: Cross multiply
    228,377.69x = 315,161.83 × 126,410.17
  4. Step 4: Simplify right side
    228,377.69x = 39,839,660,507.81
  5. Step 5: Solve for x
    x = 39,839,660,507.81/228,377.69
  6. Step 6: Final answer
    x = 174,446.38

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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.