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Finding the Fourth Proportional to 262,643.10, 391,466.22 and 247,694.94

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Solution

The fourth proportional to 262,643.10, 391,466.22 and 247,694.94 is: 369,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,643.10 : 391,466.22 = 247,694.94 : x
  2. Step 2: Convert to fraction form
    262,643.10/391,466.22 = 247,694.94/x
  3. Step 3: Cross multiply
    262,643.10x = 391,466.22 × 247,694.94
  4. Step 4: Simplify right side
    262,643.10x = 96,964,201,874.93
  5. Step 5: Solve for x
    x = 96,964,201,874.93/262,643.10
  6. Step 6: Final answer
    x = 369,186.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.