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Finding the Fourth Proportional to 445,615.83, 668,019.15 and 164,936.25

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Solution

The fourth proportional to 445,615.83, 668,019.15 and 164,936.25 is: 247,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,615.83 : 668,019.15 = 164,936.25 : x
  2. Step 2: Convert to fraction form
    445,615.83/668,019.15 = 164,936.25/x
  3. Step 3: Cross multiply
    445,615.83x = 668,019.15 × 164,936.25
  4. Step 4: Simplify right side
    445,615.83x = 110,180,573,529.19
  5. Step 5: Solve for x
    x = 110,180,573,529.19/445,615.83
  6. Step 6: Final answer
    x = 247,254.62

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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.