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Finding the Fourth Proportional to 342,424.20, 513,636.30 and 202,110.60

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Solution

The fourth proportional to 342,424.20, 513,636.30 and 202,110.60 is: 303,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,424.20 : 513,636.30 = 202,110.60 : x
  2. Step 2: Convert to fraction form
    342,424.20/513,636.30 = 202,110.60/x
  3. Step 3: Cross multiply
    342,424.20x = 513,636.30 × 202,110.60
  4. Step 4: Simplify right side
    342,424.20x = 103,811,340,774.78
  5. Step 5: Solve for x
    x = 103,811,340,774.78/342,424.20
  6. Step 6: Final answer
    x = 303,165.90

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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.