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Finding the Fourth Proportional to 270,304.25, 405,062.71 and 129,898.85

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Solution

The fourth proportional to 270,304.25, 405,062.71 and 129,898.85 is: 194,659.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,304.25 : 405,062.71 = 129,898.85 : x
  2. Step 2: Convert to fraction form
    270,304.25/405,062.71 = 129,898.85/x
  3. Step 3: Cross multiply
    270,304.25x = 405,062.71 × 129,898.85
  4. Step 4: Simplify right side
    270,304.25x = 52,617,177,856.82
  5. Step 5: Solve for x
    x = 52,617,177,856.82/270,304.25
  6. Step 6: Final answer
    x = 194,659.09

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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.