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Finding the Fourth Proportional to 447,504.72, 671,190.40 and 147,986.87

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Solution

The fourth proportional to 447,504.72, 671,190.40 and 147,986.87 is: 221,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,504.72 : 671,190.40 = 147,986.87 : x
  2. Step 2: Convert to fraction form
    447,504.72/671,190.40 = 147,986.87/x
  3. Step 3: Cross multiply
    447,504.72x = 671,190.40 × 147,986.87
  4. Step 4: Simplify right side
    447,504.72x = 99,327,363,299.08
  5. Step 5: Solve for x
    x = 99,327,363,299.08/447,504.72
  6. Step 6: Final answer
    x = 221,958.25

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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.