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Finding the Fourth Proportional to 228,702.50, 315,604.74 and 126,727.07

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Solution

The fourth proportional to 228,702.50, 315,604.74 and 126,727.07 is: 174,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,702.50 : 315,604.74 = 126,727.07 : x
  2. Step 2: Convert to fraction form
    228,702.50/315,604.74 = 126,727.07/x
  3. Step 3: Cross multiply
    228,702.50x = 315,604.74 × 126,727.07
  4. Step 4: Simplify right side
    228,702.50x = 39,995,662,400.29
  5. Step 5: Solve for x
    x = 39,995,662,400.29/228,702.50
  6. Step 6: Final answer
    x = 174,880.74

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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.