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Finding the Fourth Proportional to 343,340.20, 515,010.30 and 201,622.60

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Solution

The fourth proportional to 343,340.20, 515,010.30 and 201,622.60 is: 302,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,340.20 : 515,010.30 = 201,622.60 : x
  2. Step 2: Convert to fraction form
    343,340.20/515,010.30 = 201,622.60/x
  3. Step 3: Cross multiply
    343,340.20x = 515,010.30 × 201,622.60
  4. Step 4: Simplify right side
    343,340.20x = 103,837,715,712.78
  5. Step 5: Solve for x
    x = 103,837,715,712.78/343,340.20
  6. Step 6: Final answer
    x = 302,433.90

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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.