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Finding the Fourth Proportional to 463,269.80, 639,282.69 and 259,286.42

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Solution

The fourth proportional to 463,269.80, 639,282.69 and 259,286.42 is: 357,798.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,269.80 : 639,282.69 = 259,286.42 : x
  2. Step 2: Convert to fraction form
    463,269.80/639,282.69 = 259,286.42/x
  3. Step 3: Cross multiply
    463,269.80x = 639,282.69 × 259,286.42
  4. Step 4: Simplify right side
    463,269.80x = 165,757,316,861.66
  5. Step 5: Solve for x
    x = 165,757,316,861.66/463,269.80
  6. Step 6: Final answer
    x = 357,798.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.