Home / 387,979.52-582,111.42-163,396.48

Finding the Fourth Proportional to 387,979.52, 582,111.42 and 163,396.48

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Solution

The fourth proportional to 387,979.52, 582,111.42 and 163,396.48 is: 245,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,979.52 : 582,111.42 = 163,396.48 : x
  2. Step 2: Convert to fraction form
    387,979.52/582,111.42 = 163,396.48/x
  3. Step 3: Cross multiply
    387,979.52x = 582,111.42 × 163,396.48
  4. Step 4: Simplify right side
    387,979.52x = 95,114,956,995.80
  5. Step 5: Solve for x
    x = 95,114,956,995.80/387,979.52
  6. Step 6: Final answer
    x = 245,154.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.