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Finding the Fourth Proportional to 248,451.91, 371,978.02 and 223,257.67

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Solution

The fourth proportional to 248,451.91, 371,978.02 and 223,257.67 is: 334,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,451.91 : 371,978.02 = 223,257.67 : x
  2. Step 2: Convert to fraction form
    248,451.91/371,978.02 = 223,257.67/x
  3. Step 3: Cross multiply
    248,451.91x = 371,978.02 × 223,257.67
  4. Step 4: Simplify right side
    248,451.91x = 83,046,946,036.41
  5. Step 5: Solve for x
    x = 83,046,946,036.41/248,451.91
  6. Step 6: Final answer
    x = 334,257.63

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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.