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Finding the Fourth Proportional to 340,414.20, 510,621.30 and 91,096.20

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Solution

The fourth proportional to 340,414.20, 510,621.30 and 91,096.20 is: 136,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,414.20 : 510,621.30 = 91,096.20 : x
  2. Step 2: Convert to fraction form
    340,414.20/510,621.30 = 91,096.20/x
  3. Step 3: Cross multiply
    340,414.20x = 510,621.30 × 91,096.20
  4. Step 4: Simplify right side
    340,414.20x = 46,515,660,069.06
  5. Step 5: Solve for x
    x = 46,515,660,069.06/340,414.20
  6. Step 6: Final answer
    x = 136,644.30

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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.