Home / 318,320.28-439,134.30-190,774.44

Finding the Fourth Proportional to 318,320.28, 439,134.30 and 190,774.44

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Solution

The fourth proportional to 318,320.28, 439,134.30 and 190,774.44 is: 263,180.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,320.28 : 439,134.30 = 190,774.44 : x
  2. Step 2: Convert to fraction form
    318,320.28/439,134.30 = 190,774.44/x
  3. Step 3: Cross multiply
    318,320.28x = 439,134.30 × 190,774.44
  4. Step 4: Simplify right side
    318,320.28x = 83,775,600,167.29
  5. Step 5: Solve for x
    x = 83,775,600,167.29/318,320.28
  6. Step 6: Final answer
    x = 263,180.22

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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.