Home / 190,320.30-285,480.45-172,824.30

Finding the Fourth Proportional to 190,320.30, 285,480.45 and 172,824.30

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Solution

The fourth proportional to 190,320.30, 285,480.45 and 172,824.30 is: 259,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,320.30 : 285,480.45 = 172,824.30 : x
  2. Step 2: Convert to fraction form
    190,320.30/285,480.45 = 172,824.30/x
  3. Step 3: Cross multiply
    190,320.30x = 285,480.45 × 172,824.30
  4. Step 4: Simplify right side
    190,320.30x = 49,337,958,934.94
  5. Step 5: Solve for x
    x = 49,337,958,934.94/190,320.30
  6. Step 6: Final answer
    x = 259,236.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.