Home / 387,981.52-582,114.42-163,398.48

Finding the Fourth Proportional to 387,981.52, 582,114.42 and 163,398.48

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Solution

The fourth proportional to 387,981.52, 582,114.42 and 163,398.48 is: 245,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,981.52 : 582,114.42 = 163,398.48 : x
  2. Step 2: Convert to fraction form
    387,981.52/582,114.42 = 163,398.48/x
  3. Step 3: Cross multiply
    387,981.52x = 582,114.42 × 163,398.48
  4. Step 4: Simplify right side
    387,981.52x = 95,116,611,414.08
  5. Step 5: Solve for x
    x = 95,116,611,414.08/387,981.52
  6. Step 6: Final answer
    x = 245,157.58

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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.