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Finding the Fourth Proportional to 228,855.47, 315,830.55 and 126,874.44

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Solution

The fourth proportional to 228,855.47, 315,830.55 and 126,874.44 is: 175,092.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,855.47 : 315,830.55 = 126,874.44 : x
  2. Step 2: Convert to fraction form
    228,855.47/315,830.55 = 126,874.44/x
  3. Step 3: Cross multiply
    228,855.47x = 315,830.55 × 126,874.44
  4. Step 4: Simplify right side
    228,855.47x = 40,070,824,166.14
  5. Step 5: Solve for x
    x = 40,070,824,166.14/228,855.47
  6. Step 6: Final answer
    x = 175,092.28

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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.