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Finding the Fourth Proportional to 365,819.91, 548,734.47 and 128,996.52

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Solution

The fourth proportional to 365,819.91, 548,734.47 and 128,996.52 is: 193,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,819.91 : 548,734.47 = 128,996.52 : x
  2. Step 2: Convert to fraction form
    365,819.91/548,734.47 = 128,996.52/x
  3. Step 3: Cross multiply
    365,819.91x = 548,734.47 × 128,996.52
  4. Step 4: Simplify right side
    365,819.91x = 70,784,837,034.04
  5. Step 5: Solve for x
    x = 70,784,837,034.04/365,819.91
  6. Step 6: Final answer
    x = 193,496.40

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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.