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Finding the Fourth Proportional to 239,299.22, 358,859.42 and 79,345.82

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Solution

The fourth proportional to 239,299.22, 358,859.42 and 79,345.82 is: 118,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,299.22 : 358,859.42 = 79,345.82 : x
  2. Step 2: Convert to fraction form
    239,299.22/358,859.42 = 79,345.82/x
  3. Step 3: Cross multiply
    239,299.22x = 358,859.42 × 79,345.82
  4. Step 4: Simplify right side
    239,299.22x = 28,473,994,944.62
  5. Step 5: Solve for x
    x = 28,473,994,944.62/239,299.22
  6. Step 6: Final answer
    x = 118,989.08

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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.