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Finding the Fourth Proportional to 245,747, 368,679 and 79,535

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Solution

The fourth proportional to 245,747, 368,679 and 79,535 is: 119,321.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,747 : 368,679 = 79,535 : x
  2. Step 2: Convert to fraction form
    245,747/368,679 = 79,535/x
  3. Step 3: Cross multiply
    245,747x = 368,679 × 79,535
  4. Step 4: Simplify right side
    245,747x = 29,322,884,265
  5. Step 5: Solve for x
    x = 29,322,884,265/245,747
  6. Step 6: Final answer
    x = 119,321.43

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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.