Home / 271,814.10-407,721.15-171,430.80

Finding the Fourth Proportional to 271,814.10, 407,721.15 and 171,430.80

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Solution

The fourth proportional to 271,814.10, 407,721.15 and 171,430.80 is: 257,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,814.10 : 407,721.15 = 171,430.80 : x
  2. Step 2: Convert to fraction form
    271,814.10/407,721.15 = 171,430.80/x
  3. Step 3: Cross multiply
    271,814.10x = 407,721.15 × 171,430.80
  4. Step 4: Simplify right side
    271,814.10x = 69,895,962,921.42
  5. Step 5: Solve for x
    x = 69,895,962,921.42/271,814.10
  6. Step 6: Final answer
    x = 257,146.20

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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.