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Finding the Fourth Proportional to 388,065.71, 582,169.07 and 160,361.87

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Solution

The fourth proportional to 388,065.71, 582,169.07 and 160,361.87 is: 240,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,065.71 : 582,169.07 = 160,361.87 : x
  2. Step 2: Convert to fraction form
    388,065.71/582,169.07 = 160,361.87/x
  3. Step 3: Cross multiply
    388,065.71x = 582,169.07 × 160,361.87
  4. Step 4: Simplify right side
    388,065.71x = 93,357,720,721.36
  5. Step 5: Solve for x
    x = 93,357,720,721.36/388,065.71
  6. Step 6: Final answer
    x = 240,571.94

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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.