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Finding the Fourth Proportional to 285,037.24, 393,179.98 and 188,241.98

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Solution

The fourth proportional to 285,037.24, 393,179.98 and 188,241.98 is: 259,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,037.24 : 393,179.98 = 188,241.98 : x
  2. Step 2: Convert to fraction form
    285,037.24/393,179.98 = 188,241.98/x
  3. Step 3: Cross multiply
    285,037.24x = 393,179.98 × 188,241.98
  4. Step 4: Simplify right side
    285,037.24x = 74,012,977,931.56
  5. Step 5: Solve for x
    x = 74,012,977,931.56/285,037.24
  6. Step 6: Final answer
    x = 259,660.73

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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.