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Finding the Fourth Proportional to 290,434.44, 435,729.42 and 262,674.12

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Solution

The fourth proportional to 290,434.44, 435,729.42 and 262,674.12 is: 394,081.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,434.44 : 435,729.42 = 262,674.12 : x
  2. Step 2: Convert to fraction form
    290,434.44/435,729.42 = 262,674.12/x
  3. Step 3: Cross multiply
    290,434.44x = 435,729.42 × 262,674.12
  4. Step 4: Simplify right side
    290,434.44x = 114,454,841,956.61
  5. Step 5: Solve for x
    x = 114,454,841,956.61/290,434.44
  6. Step 6: Final answer
    x = 394,081.51

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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.