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Finding the Fourth Proportional to 439,766.91, 606,879.50 and 238,562.91

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Solution

The fourth proportional to 439,766.91, 606,879.50 and 238,562.91 is: 329,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,766.91 : 606,879.50 = 238,562.91 : x
  2. Step 2: Convert to fraction form
    439,766.91/606,879.50 = 238,562.91/x
  3. Step 3: Cross multiply
    439,766.91x = 606,879.50 × 238,562.91
  4. Step 4: Simplify right side
    439,766.91x = 144,778,939,539.35
  5. Step 5: Solve for x
    x = 144,778,939,539.35/439,766.91
  6. Step 6: Final answer
    x = 329,217.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.