Home / 330,315.20-455,841-187,104.98

Finding the Fourth Proportional to 330,315.20, 455,841 and 187,104.98

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Solution

The fourth proportional to 330,315.20, 455,841 and 187,104.98 is: 258,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,315.20 : 455,841 = 187,104.98 : x
  2. Step 2: Convert to fraction form
    330,315.20/455,841 = 187,104.98/x
  3. Step 3: Cross multiply
    330,315.20x = 455,841 × 187,104.98
  4. Step 4: Simplify right side
    330,315.20x = 85,290,121,188.18
  5. Step 5: Solve for x
    x = 85,290,121,188.18/330,315.20
  6. Step 6: Final answer
    x = 258,208.28

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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.