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Finding the Fourth Proportional to 286,251.90, 395,039.96 and 158,927.50

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Solution

The fourth proportional to 286,251.90, 395,039.96 and 158,927.50 is: 219,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,251.90 : 395,039.96 = 158,927.50 : x
  2. Step 2: Convert to fraction form
    286,251.90/395,039.96 = 158,927.50/x
  3. Step 3: Cross multiply
    286,251.90x = 395,039.96 × 158,927.50
  4. Step 4: Simplify right side
    286,251.90x = 62,782,713,242.90
  5. Step 5: Solve for x
    x = 62,782,713,242.90/286,251.90
  6. Step 6: Final answer
    x = 219,326.80

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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.