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Finding the Fourth Proportional to 342,136.70, 513,205.05 and 202,168.70

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Solution

The fourth proportional to 342,136.70, 513,205.05 and 202,168.70 is: 303,253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,136.70 : 513,205.05 = 202,168.70 : x
  2. Step 2: Convert to fraction form
    342,136.70/513,205.05 = 202,168.70/x
  3. Step 3: Cross multiply
    342,136.70x = 513,205.05 × 202,168.70
  4. Step 4: Simplify right side
    342,136.70x = 103,753,997,791.94
  5. Step 5: Solve for x
    x = 103,753,997,791.94/342,136.70
  6. Step 6: Final answer
    x = 303,253.05

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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.