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Finding the Fourth Proportional to 322,404.64, 483,552.96 and 85,750.72

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Solution

The fourth proportional to 322,404.64, 483,552.96 and 85,750.72 is: 128,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,404.64 : 483,552.96 = 85,750.72 : x
  2. Step 2: Convert to fraction form
    322,404.64/483,552.96 = 85,750.72/x
  3. Step 3: Cross multiply
    322,404.64x = 483,552.96 × 85,750.72
  4. Step 4: Simplify right side
    322,404.64x = 41,465,014,478.13
  5. Step 5: Solve for x
    x = 41,465,014,478.13/322,404.64
  6. Step 6: Final answer
    x = 128,611.72

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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.