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Finding the Fourth Proportional to 228,905.70, 343,358.55 and 71,150.10

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Solution

The fourth proportional to 228,905.70, 343,358.55 and 71,150.10 is: 106,725.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,905.70 : 343,358.55 = 71,150.10 : x
  2. Step 2: Convert to fraction form
    228,905.70/343,358.55 = 71,150.10/x
  3. Step 3: Cross multiply
    228,905.70x = 343,358.55 × 71,150.10
  4. Step 4: Simplify right side
    228,905.70x = 24,429,995,168.36
  5. Step 5: Solve for x
    x = 24,429,995,168.36/228,905.70
  6. Step 6: Final answer
    x = 106,725.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.