Home / 343,884.03-515,660.13-144,150.78

Finding the Fourth Proportional to 343,884.03, 515,660.13 and 144,150.78

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Solution

The fourth proportional to 343,884.03, 515,660.13 and 144,150.78 is: 216,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,884.03 : 515,660.13 = 144,150.78 : x
  2. Step 2: Convert to fraction form
    343,884.03/515,660.13 = 144,150.78/x
  3. Step 3: Cross multiply
    343,884.03x = 515,660.13 × 144,150.78
  4. Step 4: Simplify right side
    343,884.03x = 74,332,809,954.40
  5. Step 5: Solve for x
    x = 74,332,809,954.40/343,884.03
  6. Step 6: Final answer
    x = 216,156.62

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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.