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Finding the Fourth Proportional to 181,618, 272,427 and 50,290

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Solution

The fourth proportional to 181,618, 272,427 and 50,290 is: 75,435

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,618 : 272,427 = 50,290 : x
  2. Step 2: Convert to fraction form
    181,618/272,427 = 50,290/x
  3. Step 3: Cross multiply
    181,618x = 272,427 × 50,290
  4. Step 4: Simplify right side
    181,618x = 13,700,353,830
  5. Step 5: Solve for x
    x = 13,700,353,830/181,618
  6. Step 6: Final answer
    x = 75,435

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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.