Home / 271,403.36-406,560.72-138,278.24

Finding the Fourth Proportional to 271,403.36, 406,560.72 and 138,278.24

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Solution

The fourth proportional to 271,403.36, 406,560.72 and 138,278.24 is: 207,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,403.36 : 406,560.72 = 138,278.24 : x
  2. Step 2: Convert to fraction form
    271,403.36/406,560.72 = 138,278.24/x
  3. Step 3: Cross multiply
    271,403.36x = 406,560.72 × 138,278.24
  4. Step 4: Simplify right side
    271,403.36x = 56,218,500,814.73
  5. Step 5: Solve for x
    x = 56,218,500,814.73/271,403.36
  6. Step 6: Final answer
    x = 207,140.03

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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.