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Finding the Fourth Proportional to 228,880.11, 315,841.90 and 126,899.62

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Solution

The fourth proportional to 228,880.11, 315,841.90 and 126,899.62 is: 175,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,880.11 : 315,841.90 = 126,899.62 : x
  2. Step 2: Convert to fraction form
    228,880.11/315,841.90 = 126,899.62/x
  3. Step 3: Cross multiply
    228,880.11x = 315,841.90 × 126,899.62
  4. Step 4: Simplify right side
    228,880.11x = 40,080,217,090.08
  5. Step 5: Solve for x
    x = 40,080,217,090.08/228,880.11
  6. Step 6: Final answer
    x = 175,114.46

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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.