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Finding the Fourth Proportional to 439,959.96, 607,144.73 and 238,755.96

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Solution

The fourth proportional to 439,959.96, 607,144.73 and 238,755.96 is: 329,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,959.96 : 607,144.73 = 238,755.96 : x
  2. Step 2: Convert to fraction form
    439,959.96/607,144.73 = 238,755.96/x
  3. Step 3: Cross multiply
    439,959.96x = 607,144.73 × 238,755.96
  4. Step 4: Simplify right side
    439,959.96x = 144,959,421,676.31
  5. Step 5: Solve for x
    x = 144,959,421,676.31/439,959.96
  6. Step 6: Final answer
    x = 329,483.21

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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.