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Finding the Fourth Proportional to 486,462.96, 729,710.87 and 131,480.06

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Solution

The fourth proportional to 486,462.96, 729,710.87 and 131,480.06 is: 197,224.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,462.96 : 729,710.87 = 131,480.06 : x
  2. Step 2: Convert to fraction form
    486,462.96/729,710.87 = 131,480.06/x
  3. Step 3: Cross multiply
    486,462.96x = 729,710.87 × 131,480.06
  4. Step 4: Simplify right side
    486,462.96x = 95,942,424,664.30
  5. Step 5: Solve for x
    x = 95,942,424,664.30/486,462.96
  6. Step 6: Final answer
    x = 197,224.52

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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.