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Finding the Fourth Proportional to 438,015.96, 604,454.04 and 247,029.48

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Solution

The fourth proportional to 438,015.96, 604,454.04 and 247,029.48 is: 340,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,015.96 : 604,454.04 = 247,029.48 : x
  2. Step 2: Convert to fraction form
    438,015.96/604,454.04 = 247,029.48/x
  3. Step 3: Cross multiply
    438,015.96x = 604,454.04 × 247,029.48
  4. Step 4: Simplify right side
    438,015.96x = 149,317,967,185.10
  5. Step 5: Solve for x
    x = 149,317,967,185.10/438,015.96
  6. Step 6: Final answer
    x = 340,896.18

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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.