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Finding the Fourth Proportional to 256,370.10, 384,401.55 and 131,954.10

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Solution

The fourth proportional to 256,370.10, 384,401.55 and 131,954.10 is: 197,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,370.10 : 384,401.55 = 131,954.10 : x
  2. Step 2: Convert to fraction form
    256,370.10/384,401.55 = 131,954.10/x
  3. Step 3: Cross multiply
    256,370.10x = 384,401.55 × 131,954.10
  4. Step 4: Simplify right side
    256,370.10x = 50,723,360,568.86
  5. Step 5: Solve for x
    x = 50,723,360,568.86/256,370.10
  6. Step 6: Final answer
    x = 197,852.09

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1.5x scale

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.