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Finding the Fourth Proportional to 286,342.67, 395,350.59 and 178,960.97

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Solution

The fourth proportional to 286,342.67, 395,350.59 and 178,960.97 is: 247,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,342.67 : 395,350.59 = 178,960.97 : x
  2. Step 2: Convert to fraction form
    286,342.67/395,350.59 = 178,960.97/x
  3. Step 3: Cross multiply
    286,342.67x = 395,350.59 × 178,960.97
  4. Step 4: Simplify right side
    286,342.67x = 70,752,323,099.72
  5. Step 5: Solve for x
    x = 70,752,323,099.72/286,342.67
  6. Step 6: Final answer
    x = 247,089.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.