Home / 245,335.12-368,044.14-76,822.21

Finding the Fourth Proportional to 245,335.12, 368,044.14 and 76,822.21

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Solution

The fourth proportional to 245,335.12, 368,044.14 and 76,822.21 is: 115,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,335.12 : 368,044.14 = 76,822.21 : x
  2. Step 2: Convert to fraction form
    245,335.12/368,044.14 = 76,822.21/x
  3. Step 3: Cross multiply
    245,335.12x = 368,044.14 × 76,822.21
  4. Step 4: Simplify right side
    245,335.12x = 28,273,964,212.35
  5. Step 5: Solve for x
    x = 28,273,964,212.35/245,335.12
  6. Step 6: Final answer
    x = 115,246.30

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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.