Home / 248,405.20-372,717.15-115,216.90

Finding the Fourth Proportional to 248,405.20, 372,717.15 and 115,216.90

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Solution

The fourth proportional to 248,405.20, 372,717.15 and 115,216.90 is: 172,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,405.20 : 372,717.15 = 115,216.90 : x
  2. Step 2: Convert to fraction form
    248,405.20/372,717.15 = 115,216.90/x
  3. Step 3: Cross multiply
    248,405.20x = 372,717.15 × 115,216.90
  4. Step 4: Simplify right side
    248,405.20x = 42,943,314,599.84
  5. Step 5: Solve for x
    x = 42,943,314,599.84/248,405.20
  6. Step 6: Final answer
    x = 172,876.07

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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.