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Finding the Fourth Proportional to 388,901.27, 582,951.27 and 148,949.71

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Solution

The fourth proportional to 388,901.27, 582,951.27 and 148,949.71 is: 223,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,901.27 : 582,951.27 = 148,949.71 : x
  2. Step 2: Convert to fraction form
    388,901.27/582,951.27 = 148,949.71/x
  3. Step 3: Cross multiply
    388,901.27x = 582,951.27 × 148,949.71
  4. Step 4: Simplify right side
    388,901.27x = 86,830,422,610.63
  5. Step 5: Solve for x
    x = 86,830,422,610.63/388,901.27
  6. Step 6: Final answer
    x = 223,271.12

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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.