Home / 286,255.40-395,044.79-158,931

Finding the Fourth Proportional to 286,255.40, 395,044.79 and 158,931

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Solution

The fourth proportional to 286,255.40, 395,044.79 and 158,931 is: 219,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,255.40 : 395,044.79 = 158,931 : x
  2. Step 2: Convert to fraction form
    286,255.40/395,044.79 = 158,931/x
  3. Step 3: Cross multiply
    286,255.40x = 395,044.79 × 158,931
  4. Step 4: Simplify right side
    286,255.40x = 62,784,862,724.84
  5. Step 5: Solve for x
    x = 62,784,862,724.84/286,255.40
  6. Step 6: Final answer
    x = 219,331.63

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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.