Home / 388,381.16-582,579.03-107,905.70

Finding the Fourth Proportional to 388,381.16, 582,579.03 and 107,905.70

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Solution

The fourth proportional to 388,381.16, 582,579.03 and 107,905.70 is: 161,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,381.16 : 582,579.03 = 107,905.70 : x
  2. Step 2: Convert to fraction form
    388,381.16/582,579.03 = 107,905.70/x
  3. Step 3: Cross multiply
    388,381.16x = 582,579.03 × 107,905.70
  4. Step 4: Simplify right side
    388,381.16x = 62,863,595,124.58
  5. Step 5: Solve for x
    x = 62,863,595,124.58/388,381.16
  6. Step 6: Final answer
    x = 161,860.57

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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.