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Finding the Fourth Proportional to 270,386, 405,579 and 73,394

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Solution

The fourth proportional to 270,386, 405,579 and 73,394 is: 110,091

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,386 : 405,579 = 73,394 : x
  2. Step 2: Convert to fraction form
    270,386/405,579 = 73,394/x
  3. Step 3: Cross multiply
    270,386x = 405,579 × 73,394
  4. Step 4: Simplify right side
    270,386x = 29,767,065,126
  5. Step 5: Solve for x
    x = 29,767,065,126/270,386
  6. Step 6: Final answer
    x = 110,091

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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.