Home / 285,036.23-393,178.61-188,240.98

Finding the Fourth Proportional to 285,036.23, 393,178.61 and 188,240.98

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Solution

The fourth proportional to 285,036.23, 393,178.61 and 188,240.98 is: 259,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,036.23 : 393,178.61 = 188,240.98 : x
  2. Step 2: Convert to fraction form
    285,036.23/393,178.61 = 188,240.98/x
  3. Step 3: Cross multiply
    285,036.23x = 393,178.61 × 188,240.98
  4. Step 4: Simplify right side
    285,036.23x = 74,012,326,861.44
  5. Step 5: Solve for x
    x = 74,012,326,861.44/285,036.23
  6. Step 6: Final answer
    x = 259,659.37

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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.