Home / 245,721.78-368,582.82-68,228.80

Finding the Fourth Proportional to 245,721.78, 368,582.82 and 68,228.80

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Solution

The fourth proportional to 245,721.78, 368,582.82 and 68,228.80 is: 102,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,721.78 : 368,582.82 = 68,228.80 : x
  2. Step 2: Convert to fraction form
    245,721.78/368,582.82 = 68,228.80/x
  3. Step 3: Cross multiply
    245,721.78x = 368,582.82 × 68,228.80
  4. Step 4: Simplify right side
    245,721.78x = 25,147,963,509.22
  5. Step 5: Solve for x
    x = 25,147,963,509.22/245,721.78
  6. Step 6: Final answer
    x = 102,343.24

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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.