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Finding the Fourth Proportional to 380,474.96, 570,089.07 and 230,763.87

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Solution

The fourth proportional to 380,474.96, 570,089.07 and 230,763.87 is: 345,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,474.96 : 570,089.07 = 230,763.87 : x
  2. Step 2: Convert to fraction form
    380,474.96/570,089.07 = 230,763.87/x
  3. Step 3: Cross multiply
    380,474.96x = 570,089.07 × 230,763.87
  4. Step 4: Simplify right side
    380,474.96x = 131,555,960,037.90
  5. Step 5: Solve for x
    x = 131,555,960,037.90/380,474.96
  6. Step 6: Final answer
    x = 345,767.73

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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.