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Finding the Fourth Proportional to 447,006.64, 670,509.92 and 131,463.54

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Solution

The fourth proportional to 447,006.64, 670,509.92 and 131,463.54 is: 197,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,006.64 : 670,509.92 = 131,463.54 : x
  2. Step 2: Convert to fraction form
    447,006.64/670,509.92 = 131,463.54/x
  3. Step 3: Cross multiply
    447,006.64x = 670,509.92 × 131,463.54
  4. Step 4: Simplify right side
    447,006.64x = 88,147,607,688.32
  5. Step 5: Solve for x
    x = 88,147,607,688.32/447,006.64
  6. Step 6: Final answer
    x = 197,195.30

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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.