Home / 345,522.48-518,283.60-135,012.84

Finding the Fourth Proportional to 345,522.48, 518,283.60 and 135,012.84

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Solution

The fourth proportional to 345,522.48, 518,283.60 and 135,012.84 is: 202,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,522.48 : 518,283.60 = 135,012.84 : x
  2. Step 2: Convert to fraction form
    345,522.48/518,283.60 = 135,012.84/x
  3. Step 3: Cross multiply
    345,522.48x = 518,283.60 × 135,012.84
  4. Step 4: Simplify right side
    345,522.48x = 69,974,940,761.42
  5. Step 5: Solve for x
    x = 69,974,940,761.42/345,522.48
  6. Step 6: Final answer
    x = 202,519.21

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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.