Home / 388,330.68-582,499.86-107,849.40

Finding the Fourth Proportional to 388,330.68, 582,499.86 and 107,849.40

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Solution

The fourth proportional to 388,330.68, 582,499.86 and 107,849.40 is: 161,775.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,330.68 : 582,499.86 = 107,849.40 : x
  2. Step 2: Convert to fraction form
    388,330.68/582,499.86 = 107,849.40/x
  3. Step 3: Cross multiply
    388,330.68x = 582,499.86 × 107,849.40
  4. Step 4: Simplify right side
    388,330.68x = 62,822,260,401.08
  5. Step 5: Solve for x
    x = 62,822,260,401.08/388,330.68
  6. Step 6: Final answer
    x = 161,775.17

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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.