Home / 286,915.84-395,942.71-159,591.45

Finding the Fourth Proportional to 286,915.84, 395,942.71 and 159,591.45

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Solution

The fourth proportional to 286,915.84, 395,942.71 and 159,591.45 is: 220,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,915.84 : 395,942.71 = 159,591.45 : x
  2. Step 2: Convert to fraction form
    286,915.84/395,942.71 = 159,591.45/x
  3. Step 3: Cross multiply
    286,915.84x = 395,942.71 × 159,591.45
  4. Step 4: Simplify right side
    286,915.84x = 63,189,071,205.83
  5. Step 5: Solve for x
    x = 63,189,071,205.83/286,915.84
  6. Step 6: Final answer
    x = 220,235.56

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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.