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Finding the Fourth Proportional to 248,423.80, 372,635.70 and 219,883.45

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Solution

The fourth proportional to 248,423.80, 372,635.70 and 219,883.45 is: 329,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,423.80 : 372,635.70 = 219,883.45 : x
  2. Step 2: Convert to fraction form
    248,423.80/372,635.70 = 219,883.45/x
  3. Step 3: Cross multiply
    248,423.80x = 372,635.70 × 219,883.45
  4. Step 4: Simplify right side
    248,423.80x = 81,936,423,309.17
  5. Step 5: Solve for x
    x = 81,936,423,309.17/248,423.80
  6. Step 6: Final answer
    x = 329,825.18

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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.