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Finding the Fourth Proportional to 228,706.27, 315,609.91 and 126,730.82

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Solution

The fourth proportional to 228,706.27, 315,609.91 and 126,730.82 is: 174,885.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,706.27 : 315,609.91 = 126,730.82 : x
  2. Step 2: Convert to fraction form
    228,706.27/315,609.91 = 126,730.82/x
  3. Step 3: Cross multiply
    228,706.27x = 315,609.91 × 126,730.82
  4. Step 4: Simplify right side
    228,706.27x = 39,997,503,166.62
  5. Step 5: Solve for x
    x = 39,997,503,166.62/228,706.27
  6. Step 6: Final answer
    x = 174,885.91

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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.