Home / 378,328.42-522,096.70-208,568.62

Finding the Fourth Proportional to 378,328.42, 522,096.70 and 208,568.62

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Solution

The fourth proportional to 378,328.42, 522,096.70 and 208,568.62 is: 287,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,328.42 : 522,096.70 = 208,568.62 : x
  2. Step 2: Convert to fraction form
    378,328.42/522,096.70 = 208,568.62/x
  3. Step 3: Cross multiply
    378,328.42x = 522,096.70 × 208,568.62
  4. Step 4: Simplify right side
    378,328.42x = 108,892,988,225.55
  5. Step 5: Solve for x
    x = 108,892,988,225.55/378,328.42
  6. Step 6: Final answer
    x = 287,826.61

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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.