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Finding the Fourth Proportional to 271,870.60, 407,417.10 and 200,234.20

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Solution

The fourth proportional to 271,870.60, 407,417.10 and 200,234.20 is: 300,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,870.60 : 407,417.10 = 200,234.20 : x
  2. Step 2: Convert to fraction form
    271,870.60/407,417.10 = 200,234.20/x
  3. Step 3: Cross multiply
    271,870.60x = 407,417.10 × 200,234.20
  4. Step 4: Simplify right side
    271,870.60x = 81,578,837,084.82
  5. Step 5: Solve for x
    x = 81,578,837,084.82/271,870.60
  6. Step 6: Final answer
    x = 300,064.95

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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.