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Finding the Fourth Proportional to 478,696.89, 718,168.37 and 179,181.75

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Solution

The fourth proportional to 478,696.89, 718,168.37 and 179,181.75 is: 268,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,696.89 : 718,168.37 = 179,181.75 : x
  2. Step 2: Convert to fraction form
    478,696.89/718,168.37 = 179,181.75/x
  3. Step 3: Cross multiply
    478,696.89x = 718,168.37 × 179,181.75
  4. Step 4: Simplify right side
    478,696.89x = 128,682,664,435.34
  5. Step 5: Solve for x
    x = 128,682,664,435.34/478,696.89
  6. Step 6: Final answer
    x = 268,818.68

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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.