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Finding the Fourth Proportional to 379,099.56, 522,533.64 and 268,754.88

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Solution

The fourth proportional to 379,099.56, 522,533.64 and 268,754.88 is: 370,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,099.56 : 522,533.64 = 268,754.88 : x
  2. Step 2: Convert to fraction form
    379,099.56/522,533.64 = 268,754.88/x
  3. Step 3: Cross multiply
    379,099.56x = 522,533.64 × 268,754.88
  4. Step 4: Simplify right side
    379,099.56x = 140,433,465,714.16
  5. Step 5: Solve for x
    x = 140,433,465,714.16/379,099.56
  6. Step 6: Final answer
    x = 370,439.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.