Home / 318,320.60-439,135.16-190,774.76

Finding the Fourth Proportional to 318,320.60, 439,135.16 and 190,774.76

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Solution

The fourth proportional to 318,320.60, 439,135.16 and 190,774.76 is: 263,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,320.60 : 439,135.16 = 190,774.76 : x
  2. Step 2: Convert to fraction form
    318,320.60/439,135.16 = 190,774.76/x
  3. Step 3: Cross multiply
    318,320.60x = 439,135.16 × 190,774.76
  4. Step 4: Simplify right side
    318,320.60x = 83,775,904,756.56
  5. Step 5: Solve for x
    x = 83,775,904,756.56/318,320.60
  6. Step 6: Final answer
    x = 263,180.91

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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.