Home / 330,327.78-455,860.77-187,085.70

Finding the Fourth Proportional to 330,327.78, 455,860.77 and 187,085.70

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Solution

The fourth proportional to 330,327.78, 455,860.77 and 187,085.70 is: 258,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,327.78 : 455,860.77 = 187,085.70 : x
  2. Step 2: Convert to fraction form
    330,327.78/455,860.77 = 187,085.70/x
  3. Step 3: Cross multiply
    330,327.78x = 455,860.77 × 187,085.70
  4. Step 4: Simplify right side
    330,327.78x = 85,285,031,257.99
  5. Step 5: Solve for x
    x = 85,285,031,257.99/330,327.78
  6. Step 6: Final answer
    x = 258,183.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.