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Finding the Fourth Proportional to 290,601.41, 435,723.82 and 112,900.98

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Solution

The fourth proportional to 290,601.41, 435,723.82 and 112,900.98 is: 169,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,601.41 : 435,723.82 = 112,900.98 : x
  2. Step 2: Convert to fraction form
    290,601.41/435,723.82 = 112,900.98/x
  3. Step 3: Cross multiply
    290,601.41x = 435,723.82 × 112,900.98
  4. Step 4: Simplify right side
    290,601.41x = 49,193,646,005.09
  5. Step 5: Solve for x
    x = 49,193,646,005.09/290,601.41
  6. Step 6: Final answer
    x = 169,282.20

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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.