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Finding the Fourth Proportional to 271,810.30, 406,909.05 and 201,999.10

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Solution

The fourth proportional to 271,810.30, 406,909.05 and 201,999.10 is: 302,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,810.30 : 406,909.05 = 201,999.10 : x
  2. Step 2: Convert to fraction form
    271,810.30/406,909.05 = 201,999.10/x
  3. Step 3: Cross multiply
    271,810.30x = 406,909.05 × 201,999.10
  4. Step 4: Simplify right side
    271,810.30x = 82,195,261,881.86
  5. Step 5: Solve for x
    x = 82,195,261,881.86/271,810.30
  6. Step 6: Final answer
    x = 302,399.36

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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.