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Finding the Fourth Proportional to 613,479.45, 920,205.67 and 164,200.28

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Solution

The fourth proportional to 613,479.45, 920,205.67 and 164,200.28 is: 246,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,479.45 : 920,205.67 = 164,200.28 : x
  2. Step 2: Convert to fraction form
    613,479.45/920,205.67 = 164,200.28/x
  3. Step 3: Cross multiply
    613,479.45x = 920,205.67 × 164,200.28
  4. Step 4: Simplify right side
    613,479.45x = 151,098,028,671.59
  5. Step 5: Solve for x
    x = 151,098,028,671.59/613,479.45
  6. Step 6: Final answer
    x = 246,296.81

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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.