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Finding the Fourth Proportional to 322,345.35, 483,614.61 and 130,120.80

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Solution

The fourth proportional to 322,345.35, 483,614.61 and 130,120.80 is: 195,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,345.35 : 483,614.61 = 130,120.80 : x
  2. Step 2: Convert to fraction form
    322,345.35/483,614.61 = 130,120.80/x
  3. Step 3: Cross multiply
    322,345.35x = 483,614.61 × 130,120.80
  4. Step 4: Simplify right side
    322,345.35x = 62,928,319,944.89
  5. Step 5: Solve for x
    x = 62,928,319,944.89/322,345.35
  6. Step 6: Final answer
    x = 195,220.19

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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.