Home / 345,936.80-518,905.20-341,271.20

Finding the Fourth Proportional to 345,936.80, 518,905.20 and 341,271.20

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Solution

The fourth proportional to 345,936.80, 518,905.20 and 341,271.20 is: 511,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,936.80 : 518,905.20 = 341,271.20 : x
  2. Step 2: Convert to fraction form
    345,936.80/518,905.20 = 341,271.20/x
  3. Step 3: Cross multiply
    345,936.80x = 518,905.20 × 341,271.20
  4. Step 4: Simplify right side
    345,936.80x = 177,087,400,290.24
  5. Step 5: Solve for x
    x = 177,087,400,290.24/345,936.80
  6. Step 6: Final answer
    x = 511,906.80

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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.