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Finding the Fourth Proportional to 228,854.90, 315,827.44 and 126,874.28

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Solution

The fourth proportional to 228,854.90, 315,827.44 and 126,874.28 is: 175,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,854.90 : 315,827.44 = 126,874.28 : x
  2. Step 2: Convert to fraction form
    228,854.90/315,827.44 = 126,874.28/x
  3. Step 3: Cross multiply
    228,854.90x = 315,827.44 × 126,874.28
  4. Step 4: Simplify right side
    228,854.90x = 40,070,379,526.63
  5. Step 5: Solve for x
    x = 40,070,379,526.63/228,854.90
  6. Step 6: Final answer
    x = 175,090.76

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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.