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Finding the Fourth Proportional to 271,479.90, 408,094.65 and 193,136.70

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Solution

The fourth proportional to 271,479.90, 408,094.65 and 193,136.70 is: 290,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,479.90 : 408,094.65 = 193,136.70 : x
  2. Step 2: Convert to fraction form
    271,479.90/408,094.65 = 193,136.70/x
  3. Step 3: Cross multiply
    271,479.90x = 408,094.65 × 193,136.70
  4. Step 4: Simplify right side
    271,479.90x = 78,818,053,988.66
  5. Step 5: Solve for x
    x = 78,818,053,988.66/271,479.90
  6. Step 6: Final answer
    x = 290,327.40

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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.