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Finding the Fourth Proportional to 194,220.20, 291,339.90 and 100,908.20

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Solution

The fourth proportional to 194,220.20, 291,339.90 and 100,908.20 is: 151,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,220.20 : 291,339.90 = 100,908.20 : x
  2. Step 2: Convert to fraction form
    194,220.20/291,339.90 = 100,908.20/x
  3. Step 3: Cross multiply
    194,220.20x = 291,339.90 × 100,908.20
  4. Step 4: Simplify right side
    194,220.20x = 29,398,584,897.18
  5. Step 5: Solve for x
    x = 29,398,584,897.18/194,220.20
  6. Step 6: Final answer
    x = 151,367.29

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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.