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Finding the Fourth Proportional to 322,149.92, 483,187.32 and 85,510.98

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Solution

The fourth proportional to 322,149.92, 483,187.32 and 85,510.98 is: 128,256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,149.92 : 483,187.32 = 85,510.98 : x
  2. Step 2: Convert to fraction form
    322,149.92/483,187.32 = 85,510.98/x
  3. Step 3: Cross multiply
    322,149.92x = 483,187.32 × 85,510.98
  4. Step 4: Simplify right side
    322,149.92x = 41,317,821,256.77
  5. Step 5: Solve for x
    x = 41,317,821,256.77/322,149.92
  6. Step 6: Final answer
    x = 128,256.50

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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.