Home / 278,839.54-384,797.84-151,515.15

Finding the Fourth Proportional to 278,839.54, 384,797.84 and 151,515.15

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Solution

The fourth proportional to 278,839.54, 384,797.84 and 151,515.15 is: 209,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,839.54 : 384,797.84 = 151,515.15 : x
  2. Step 2: Convert to fraction form
    278,839.54/384,797.84 = 151,515.15/x
  3. Step 3: Cross multiply
    278,839.54x = 384,797.84 × 151,515.15
  4. Step 4: Simplify right side
    278,839.54x = 58,302,702,447.28
  5. Step 5: Solve for x
    x = 58,302,702,447.28/278,839.54
  6. Step 6: Final answer
    x = 209,090.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.