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Finding the Fourth Proportional to 381,466.65, 526,860.87 and 251,226.50

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Solution

The fourth proportional to 381,466.65, 526,860.87 and 251,226.50 is: 346,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,466.65 : 526,860.87 = 251,226.50 : x
  2. Step 2: Convert to fraction form
    381,466.65/526,860.87 = 251,226.50/x
  3. Step 3: Cross multiply
    381,466.65x = 526,860.87 × 251,226.50
  4. Step 4: Simplify right side
    381,466.65x = 132,361,412,357.06
  5. Step 5: Solve for x
    x = 132,361,412,357.06/381,466.65
  6. Step 6: Final answer
    x = 346,980.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.