Home / 388,151.95-582,282.60-135,395.58

Finding the Fourth Proportional to 388,151.95, 582,282.60 and 135,395.58

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Solution

The fourth proportional to 388,151.95, 582,282.60 and 135,395.58 is: 203,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,151.95 : 582,282.60 = 135,395.58 : x
  2. Step 2: Convert to fraction form
    388,151.95/582,282.60 = 135,395.58/x
  3. Step 3: Cross multiply
    388,151.95x = 582,282.60 × 135,395.58
  4. Step 4: Simplify right side
    388,151.95x = 78,838,487,494.53
  5. Step 5: Solve for x
    x = 78,838,487,494.53/388,151.95
  6. Step 6: Final answer
    x = 203,112.43

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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.