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Finding the Fourth Proportional to 384,325.68, 576,486.36 and 131,608.38

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Solution

The fourth proportional to 384,325.68, 576,486.36 and 131,608.38 is: 197,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,325.68 : 576,486.36 = 131,608.38 : x
  2. Step 2: Convert to fraction form
    384,325.68/576,486.36 = 131,608.38/x
  3. Step 3: Cross multiply
    384,325.68x = 576,486.36 × 131,608.38
  4. Step 4: Simplify right side
    384,325.68x = 75,870,435,931.70
  5. Step 5: Solve for x
    x = 75,870,435,931.70/384,325.68
  6. Step 6: Final answer
    x = 197,411.83

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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.