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Finding the Fourth Proportional to 340,910.50, 511,439.57 and 130,548.45

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Solution

The fourth proportional to 340,910.50, 511,439.57 and 130,548.45 is: 195,850.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,910.50 : 511,439.57 = 130,548.45 : x
  2. Step 2: Convert to fraction form
    340,910.50/511,439.57 = 130,548.45/x
  3. Step 3: Cross multiply
    340,910.50x = 511,439.57 × 130,548.45
  4. Step 4: Simplify right side
    340,910.50x = 66,767,643,132.17
  5. Step 5: Solve for x
    x = 66,767,643,132.17/340,910.50
  6. Step 6: Final answer
    x = 195,850.94

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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.