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Finding the Fourth Proportional to 388,751.35, 582,886.45 and 151,815.41

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Solution

The fourth proportional to 388,751.35, 582,886.45 and 151,815.41 is: 227,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,751.35 : 582,886.45 = 151,815.41 : x
  2. Step 2: Convert to fraction form
    388,751.35/582,886.45 = 151,815.41/x
  3. Step 3: Cross multiply
    388,751.35x = 582,886.45 × 151,815.41
  4. Step 4: Simplify right side
    388,751.35x = 88,491,144,817.08
  5. Step 5: Solve for x
    x = 88,491,144,817.08/388,751.35
  6. Step 6: Final answer
    x = 227,629.17

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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.