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Finding the Fourth Proportional to 273,876.10, 411,152.46 and 129,919.57

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Solution

The fourth proportional to 273,876.10, 411,152.46 and 129,919.57 is: 195,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,876.10 : 411,152.46 = 129,919.57 : x
  2. Step 2: Convert to fraction form
    273,876.10/411,152.46 = 129,919.57/x
  3. Step 3: Cross multiply
    273,876.10x = 411,152.46 × 129,919.57
  4. Step 4: Simplify right side
    273,876.10x = 53,416,750,807.64
  5. Step 5: Solve for x
    x = 53,416,750,807.64/273,876.10
  6. Step 6: Final answer
    x = 195,039.84

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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.