Home / 358,115.42-494,285.55-205,243.20

Finding the Fourth Proportional to 358,115.42, 494,285.55 and 205,243.20

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Solution

The fourth proportional to 358,115.42, 494,285.55 and 205,243.20 is: 283,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,115.42 : 494,285.55 = 205,243.20 : x
  2. Step 2: Convert to fraction form
    358,115.42/494,285.55 = 205,243.20/x
  3. Step 3: Cross multiply
    358,115.42x = 494,285.55 × 205,243.20
  4. Step 4: Simplify right side
    358,115.42x = 101,448,747,995.76
  5. Step 5: Solve for x
    x = 101,448,747,995.76/358,115.42
  6. Step 6: Final answer
    x = 283,285.06

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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.