Home / 388,200.75-582,301.13-107,718

Finding the Fourth Proportional to 388,200.75, 582,301.13 and 107,718

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Solution

The fourth proportional to 388,200.75, 582,301.13 and 107,718 is: 161,577

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,200.75 : 582,301.13 = 107,718 : x
  2. Step 2: Convert to fraction form
    388,200.75/582,301.13 = 107,718/x
  3. Step 3: Cross multiply
    388,200.75x = 582,301.13 × 107,718
  4. Step 4: Simplify right side
    388,200.75x = 62,724,312,582.75
  5. Step 5: Solve for x
    x = 62,724,312,582.75/388,200.75
  6. Step 6: Final answer
    x = 161,577

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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.