Home / 330,415.11-455,995.40-187,176.33

Finding the Fourth Proportional to 330,415.11, 455,995.40 and 187,176.33

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Solution

The fourth proportional to 330,415.11, 455,995.40 and 187,176.33 is: 258,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,415.11 : 455,995.40 = 187,176.33 : x
  2. Step 2: Convert to fraction form
    330,415.11/455,995.40 = 187,176.33/x
  3. Step 3: Cross multiply
    330,415.11x = 455,995.40 × 187,176.33
  4. Step 4: Simplify right side
    330,415.11x = 85,351,545,468.88
  5. Step 5: Solve for x
    x = 85,351,545,468.88/330,415.11
  6. Step 6: Final answer
    x = 258,316.11

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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.