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Finding the Fourth Proportional to 298,825.20, 448,237.80 and 158,857.20

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Solution

The fourth proportional to 298,825.20, 448,237.80 and 158,857.20 is: 238,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,825.20 : 448,237.80 = 158,857.20 : x
  2. Step 2: Convert to fraction form
    298,825.20/448,237.80 = 158,857.20/x
  3. Step 3: Cross multiply
    298,825.20x = 448,237.80 × 158,857.20
  4. Step 4: Simplify right side
    298,825.20x = 71,205,801,842.16
  5. Step 5: Solve for x
    x = 71,205,801,842.16/298,825.20
  6. Step 6: Final answer
    x = 238,285.80

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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.