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Finding the Fourth Proportional to 449,536.51, 674,349.86 and 129,696.30

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Solution

The fourth proportional to 449,536.51, 674,349.86 and 129,696.30 is: 194,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,536.51 : 674,349.86 = 129,696.30 : x
  2. Step 2: Convert to fraction form
    449,536.51/674,349.86 = 129,696.30/x
  3. Step 3: Cross multiply
    449,536.51x = 674,349.86 × 129,696.30
  4. Step 4: Simplify right side
    449,536.51x = 87,460,680,385.88
  5. Step 5: Solve for x
    x = 87,460,680,385.88/449,536.51
  6. Step 6: Final answer
    x = 194,557.46

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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.