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Finding the Fourth Proportional to 277,074.20, 415,514.10 and 143,910.20

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Solution

The fourth proportional to 277,074.20, 415,514.10 and 143,910.20 is: 215,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,074.20 : 415,514.10 = 143,910.20 : x
  2. Step 2: Convert to fraction form
    277,074.20/415,514.10 = 143,910.20/x
  3. Step 3: Cross multiply
    277,074.20x = 415,514.10 × 143,910.20
  4. Step 4: Simplify right side
    277,074.20x = 59,796,717,233.82
  5. Step 5: Solve for x
    x = 59,796,717,233.82/277,074.20
  6. Step 6: Final answer
    x = 215,814.82

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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.