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Finding the Fourth Proportional to 270,915.40, 405,789.90 and 224,259.40

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Solution

The fourth proportional to 270,915.40, 405,789.90 and 224,259.40 is: 335,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,915.40 : 405,789.90 = 224,259.40 : x
  2. Step 2: Convert to fraction form
    270,915.40/405,789.90 = 224,259.40/x
  3. Step 3: Cross multiply
    270,915.40x = 405,789.90 × 224,259.40
  4. Step 4: Simplify right side
    270,915.40x = 91,002,199,500.06
  5. Step 5: Solve for x
    x = 91,002,199,500.06/270,915.40
  6. Step 6: Final answer
    x = 335,906.34

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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.