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Finding the Fourth Proportional to 284,212.20, 425,499.10 and 173,620.20

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Solution

The fourth proportional to 284,212.20, 425,499.10 and 173,620.20 is: 259,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,212.20 : 425,499.10 = 173,620.20 : x
  2. Step 2: Convert to fraction form
    284,212.20/425,499.10 = 173,620.20/x
  3. Step 3: Cross multiply
    284,212.20x = 425,499.10 × 173,620.20
  4. Step 4: Simplify right side
    284,212.20x = 73,875,238,841.82
  5. Step 5: Solve for x
    x = 73,875,238,841.82/284,212.20
  6. Step 6: Final answer
    x = 259,929.87

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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.