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Finding the Fourth Proportional to 299,679.20, 450,037.20 and 194,962.40

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Solution

The fourth proportional to 299,679.20, 450,037.20 and 194,962.40 is: 292,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,679.20 : 450,037.20 = 194,962.40 : x
  2. Step 2: Convert to fraction form
    299,679.20/450,037.20 = 194,962.40/x
  3. Step 3: Cross multiply
    299,679.20x = 450,037.20 × 194,962.40
  4. Step 4: Simplify right side
    299,679.20x = 87,740,332,601.28
  5. Step 5: Solve for x
    x = 87,740,332,601.28/299,679.20
  6. Step 6: Final answer
    x = 292,780.86

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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.