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Finding the Fourth Proportional to 238,916.20, 358,122.64 and 120,338.32

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Solution

The fourth proportional to 238,916.20, 358,122.64 and 120,338.32 is: 180,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,916.20 : 358,122.64 = 120,338.32 : x
  2. Step 2: Convert to fraction form
    238,916.20/358,122.64 = 120,338.32/x
  3. Step 3: Cross multiply
    238,916.20x = 358,122.64 × 120,338.32
  4. Step 4: Simplify right side
    238,916.20x = 43,095,876,851.56
  5. Step 5: Solve for x
    x = 43,095,876,851.56/238,916.20
  6. Step 6: Final answer
    x = 180,380.72

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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.