Home / 345,981.49-518,994.12-146,264.65

Finding the Fourth Proportional to 345,981.49, 518,994.12 and 146,264.65

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Solution

The fourth proportional to 345,981.49, 518,994.12 and 146,264.65 is: 219,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,981.49 : 518,994.12 = 146,264.65 : x
  2. Step 2: Convert to fraction form
    345,981.49/518,994.12 = 146,264.65/x
  3. Step 3: Cross multiply
    345,981.49x = 518,994.12 × 146,264.65
  4. Step 4: Simplify right side
    345,981.49x = 75,910,493,313.86
  5. Step 5: Solve for x
    x = 75,910,493,313.86/345,981.49
  6. Step 6: Final answer
    x = 219,406.23

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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.