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Finding the Fourth Proportional to 454,779.01, 682,169.05 and 139,234.33

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Solution

The fourth proportional to 454,779.01, 682,169.05 and 139,234.33 is: 208,851.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,779.01 : 682,169.05 = 139,234.33 : x
  2. Step 2: Convert to fraction form
    454,779.01/682,169.05 = 139,234.33/x
  3. Step 3: Cross multiply
    454,779.01x = 682,169.05 × 139,234.33
  4. Step 4: Simplify right side
    454,779.01x = 94,981,350,623.49
  5. Step 5: Solve for x
    x = 94,981,350,623.49/454,779.01
  6. Step 6: Final answer
    x = 208,851.66

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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.