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Finding the Fourth Proportional to 245,817, 368,784 and 79,605

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Solution

The fourth proportional to 245,817, 368,784 and 79,605 is: 119,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,817 : 368,784 = 79,605 : x
  2. Step 2: Convert to fraction form
    245,817/368,784 = 79,605/x
  3. Step 3: Cross multiply
    245,817x = 368,784 × 79,605
  4. Step 4: Simplify right side
    245,817x = 29,357,050,320
  5. Step 5: Solve for x
    x = 29,357,050,320/245,817
  6. Step 6: Final answer
    x = 119,426.44

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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.