Home / 345,620.25-518,517.86-96,302.25

Finding the Fourth Proportional to 345,620.25, 518,517.86 and 96,302.25

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Solution

The fourth proportional to 345,620.25, 518,517.86 and 96,302.25 is: 144,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,620.25 : 518,517.86 = 96,302.25 : x
  2. Step 2: Convert to fraction form
    345,620.25/518,517.86 = 96,302.25/x
  3. Step 3: Cross multiply
    345,620.25x = 518,517.86 × 96,302.25
  4. Step 4: Simplify right side
    345,620.25x = 49,934,436,101.67
  5. Step 5: Solve for x
    x = 49,934,436,101.67/345,620.25
  6. Step 6: Final answer
    x = 144,477.75

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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.