Home / 330,196.20-455,500.26-209,133.80

Finding the Fourth Proportional to 330,196.20, 455,500.26 and 209,133.80

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Solution

The fourth proportional to 330,196.20, 455,500.26 and 209,133.80 is: 288,496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,196.20 : 455,500.26 = 209,133.80 : x
  2. Step 2: Convert to fraction form
    330,196.20/455,500.26 = 209,133.80/x
  3. Step 3: Cross multiply
    330,196.20x = 455,500.26 × 209,133.80
  4. Step 4: Simplify right side
    330,196.20x = 95,260,500,274.79
  5. Step 5: Solve for x
    x = 95,260,500,274.79/330,196.20
  6. Step 6: Final answer
    x = 288,496.66

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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.