Home / 345,943.45-518,968.64-146,264.68

Finding the Fourth Proportional to 345,943.45, 518,968.64 and 146,264.68

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Solution

The fourth proportional to 345,943.45, 518,968.64 and 146,264.68 is: 219,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,943.45 : 518,968.64 = 146,264.68 : x
  2. Step 2: Convert to fraction form
    345,943.45/518,968.64 = 146,264.68/x
  3. Step 3: Cross multiply
    345,943.45x = 518,968.64 × 146,264.68
  4. Step 4: Simplify right side
    345,943.45x = 75,906,782,059.64
  5. Step 5: Solve for x
    x = 75,906,782,059.64/345,943.45
  6. Step 6: Final answer
    x = 219,419.62

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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.