Home / 285,464.34-393,908.99-158,108.04

Finding the Fourth Proportional to 285,464.34, 393,908.99 and 158,108.04

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Solution

The fourth proportional to 285,464.34, 393,908.99 and 158,108.04 is: 218,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,464.34 : 393,908.99 = 158,108.04 : x
  2. Step 2: Convert to fraction form
    285,464.34/393,908.99 = 158,108.04/x
  3. Step 3: Cross multiply
    285,464.34x = 393,908.99 × 158,108.04
  4. Step 4: Simplify right side
    285,464.34x = 62,280,177,556.74
  5. Step 5: Solve for x
    x = 62,280,177,556.74/285,464.34
  6. Step 6: Final answer
    x = 218,171.48

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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.