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Finding the Fourth Proportional to 296,900.91, 445,345.13 and 72,262.59

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Solution

The fourth proportional to 296,900.91, 445,345.13 and 72,262.59 is: 108,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,900.91 : 445,345.13 = 72,262.59 : x
  2. Step 2: Convert to fraction form
    296,900.91/445,345.13 = 72,262.59/x
  3. Step 3: Cross multiply
    296,900.91x = 445,345.13 × 72,262.59
  4. Step 4: Simplify right side
    296,900.91x = 32,181,793,671.54
  5. Step 5: Solve for x
    x = 32,181,793,671.54/296,900.91
  6. Step 6: Final answer
    x = 108,392.37

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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.