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Finding the Fourth Proportional to 365,818.91, 548,732.97 and 128,995.52

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Solution

The fourth proportional to 365,818.91, 548,732.97 and 128,995.52 is: 193,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,818.91 : 548,732.97 = 128,995.52 : x
  2. Step 2: Convert to fraction form
    365,818.91/548,732.97 = 128,995.52/x
  3. Step 3: Cross multiply
    365,818.91x = 548,732.97 × 128,995.52
  4. Step 4: Simplify right side
    365,818.91x = 70,784,092,062.63
  5. Step 5: Solve for x
    x = 70,784,092,062.63/365,818.91
  6. Step 6: Final answer
    x = 193,494.90

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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.