Home / 345,812.76-518,857.38-124,214.04

Finding the Fourth Proportional to 345,812.76, 518,857.38 and 124,214.04

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Solution

The fourth proportional to 345,812.76, 518,857.38 and 124,214.04 is: 186,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,812.76 : 518,857.38 = 124,214.04 : x
  2. Step 2: Convert to fraction form
    345,812.76/518,857.38 = 124,214.04/x
  3. Step 3: Cross multiply
    345,812.76x = 518,857.38 × 124,214.04
  4. Step 4: Simplify right side
    345,812.76x = 64,449,371,353.62
  5. Step 5: Solve for x
    x = 64,449,371,353.62/345,812.76
  6. Step 6: Final answer
    x = 186,370.72

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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.