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Finding the Fourth Proportional to 377,302.44, 521,424.12 and 309,212.04

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Solution

The fourth proportional to 377,302.44, 521,424.12 and 309,212.04 is: 427,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,302.44 : 521,424.12 = 309,212.04 : x
  2. Step 2: Convert to fraction form
    377,302.44/521,424.12 = 309,212.04/x
  3. Step 3: Cross multiply
    377,302.44x = 521,424.12 × 309,212.04
  4. Step 4: Simplify right side
    377,302.44x = 161,230,615,850.41
  5. Step 5: Solve for x
    x = 161,230,615,850.41/377,302.44
  6. Step 6: Final answer
    x = 427,324.60

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1.5x scale

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.