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Finding the Fourth Proportional to 369,755.58, 554,705.26 and 142,034.55

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Solution

The fourth proportional to 369,755.58, 554,705.26 and 142,034.55 is: 213,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,755.58 : 554,705.26 = 142,034.55 : x
  2. Step 2: Convert to fraction form
    369,755.58/554,705.26 = 142,034.55/x
  3. Step 3: Cross multiply
    369,755.58x = 554,705.26 × 142,034.55
  4. Step 4: Simplify right side
    369,755.58x = 78,787,311,986.73
  5. Step 5: Solve for x
    x = 78,787,311,986.73/369,755.58
  6. Step 6: Final answer
    x = 213,079.44

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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.