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Finding the Fourth Proportional to 449,537.07, 674,350.71 and 129,696.86

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Solution

The fourth proportional to 449,537.07, 674,350.71 and 129,696.86 is: 194,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,537.07 : 674,350.71 = 129,696.86 : x
  2. Step 2: Convert to fraction form
    449,537.07/674,350.71 = 129,696.86/x
  3. Step 3: Cross multiply
    449,537.07x = 674,350.71 × 129,696.86
  4. Step 4: Simplify right side
    449,537.07x = 87,461,168,296.47
  5. Step 5: Solve for x
    x = 87,461,168,296.47/449,537.07
  6. Step 6: Final answer
    x = 194,558.30

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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.