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Finding the Fourth Proportional to 262,461.96, 393,385.64 and 100,249.65

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Solution

The fourth proportional to 262,461.96, 393,385.64 and 100,249.65 is: 150,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,461.96 : 393,385.64 = 100,249.65 : x
  2. Step 2: Convert to fraction form
    262,461.96/393,385.64 = 100,249.65/x
  3. Step 3: Cross multiply
    262,461.96x = 393,385.64 × 100,249.65
  4. Step 4: Simplify right side
    262,461.96x = 39,436,772,223.78
  5. Step 5: Solve for x
    x = 39,436,772,223.78/262,461.96
  6. Step 6: Final answer
    x = 150,257.10

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1.5x scale

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.