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Finding the Fourth Proportional to 388,507.47, 582,840.26 and 163,868.70

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Solution

The fourth proportional to 388,507.47, 582,840.26 and 163,868.70 is: 245,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,507.47 : 582,840.26 = 163,868.70 : x
  2. Step 2: Convert to fraction form
    388,507.47/582,840.26 = 163,868.70/x
  3. Step 3: Cross multiply
    388,507.47x = 582,840.26 × 163,868.70
  4. Step 4: Simplify right side
    388,507.47x = 95,509,274,894.52
  5. Step 5: Solve for x
    x = 95,509,274,894.52/388,507.47
  6. Step 6: Final answer
    x = 245,836.39

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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.