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Finding the Fourth Proportional to 228,608.70, 342,135.45 and 200,615.10

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Solution

The fourth proportional to 228,608.70, 342,135.45 and 200,615.10 is: 300,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,608.70 : 342,135.45 = 200,615.10 : x
  2. Step 2: Convert to fraction form
    228,608.70/342,135.45 = 200,615.10/x
  3. Step 3: Cross multiply
    228,608.70x = 342,135.45 × 200,615.10
  4. Step 4: Simplify right side
    228,608.70x = 68,637,537,515.30
  5. Step 5: Solve for x
    x = 68,637,537,515.30/228,608.70
  6. Step 6: Final answer
    x = 300,240.27

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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.