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Finding the Fourth Proportional to 228,890.20, 342,644.10 and 201,242.20

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Solution

The fourth proportional to 228,890.20, 342,644.10 and 201,242.20 is: 301,255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,890.20 : 342,644.10 = 201,242.20 : x
  2. Step 2: Convert to fraction form
    228,890.20/342,644.10 = 201,242.20/x
  3. Step 3: Cross multiply
    228,890.20x = 342,644.10 × 201,242.20
  4. Step 4: Simplify right side
    228,890.20x = 68,954,452,501.02
  5. Step 5: Solve for x
    x = 68,954,452,501.02/228,890.20
  6. Step 6: Final answer
    x = 301,255.59

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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.