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Finding the Fourth Proportional to 383,998.32, 576,254.40 and 159,358.77

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Solution

The fourth proportional to 383,998.32, 576,254.40 and 159,358.77 is: 239,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,998.32 : 576,254.40 = 159,358.77 : x
  2. Step 2: Convert to fraction form
    383,998.32/576,254.40 = 159,358.77/x
  3. Step 3: Cross multiply
    383,998.32x = 576,254.40 × 159,358.77
  4. Step 4: Simplify right side
    383,998.32x = 91,831,192,391.09
  5. Step 5: Solve for x
    x = 91,831,192,391.09/383,998.32
  6. Step 6: Final answer
    x = 239,144.78

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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.