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Finding the Fourth Proportional to 202,013.40, 303,020.10 and 96,778.20

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Solution

The fourth proportional to 202,013.40, 303,020.10 and 96,778.20 is: 145,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,013.40 : 303,020.10 = 96,778.20 : x
  2. Step 2: Convert to fraction form
    202,013.40/303,020.10 = 96,778.20/x
  3. Step 3: Cross multiply
    202,013.40x = 303,020.10 × 96,778.20
  4. Step 4: Simplify right side
    202,013.40x = 29,325,739,841.82
  5. Step 5: Solve for x
    x = 29,325,739,841.82/202,013.40
  6. Step 6: Final answer
    x = 145,167.30

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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.