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Finding the Fourth Proportional to 245,700.36, 368,552.59 and 68,221.21

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Solution

The fourth proportional to 245,700.36, 368,552.59 and 68,221.21 is: 102,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,700.36 : 368,552.59 = 68,221.21 : x
  2. Step 2: Convert to fraction form
    245,700.36/368,552.59 = 68,221.21/x
  3. Step 3: Cross multiply
    245,700.36x = 368,552.59 × 68,221.21
  4. Step 4: Simplify right side
    245,700.36x = 25,143,103,638.43
  5. Step 5: Solve for x
    x = 25,143,103,638.43/245,700.36
  6. Step 6: Final answer
    x = 102,332.38

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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.