Home / 330,208.75-455,689.85-186,996.70

Finding the Fourth Proportional to 330,208.75, 455,689.85 and 186,996.70

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Solution

The fourth proportional to 330,208.75, 455,689.85 and 186,996.70 is: 258,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,208.75 : 455,689.85 = 186,996.70 : x
  2. Step 2: Convert to fraction form
    330,208.75/455,689.85 = 186,996.70/x
  3. Step 3: Cross multiply
    330,208.75x = 455,689.85 × 186,996.70
  4. Step 4: Simplify right side
    330,208.75x = 85,212,498,859.98
  5. Step 5: Solve for x
    x = 85,212,498,859.98/330,208.75
  6. Step 6: Final answer
    x = 258,056.45

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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.