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Finding the Fourth Proportional to 449,554.56, 674,663.66 and 212,896.86

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Solution

The fourth proportional to 449,554.56, 674,663.66 and 212,896.86 is: 319,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,554.56 : 674,663.66 = 212,896.86 : x
  2. Step 2: Convert to fraction form
    449,554.56/674,663.66 = 212,896.86/x
  3. Step 3: Cross multiply
    449,554.56x = 674,663.66 × 212,896.86
  4. Step 4: Simplify right side
    449,554.56x = 143,633,774,770.11
  5. Step 5: Solve for x
    x = 143,633,774,770.11/449,554.56
  6. Step 6: Final answer
    x = 319,502.43

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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.