Home / 256,156.62-384,234.93-131,418.06

Finding the Fourth Proportional to 256,156.62, 384,234.93 and 131,418.06

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Solution

The fourth proportional to 256,156.62, 384,234.93 and 131,418.06 is: 197,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,156.62 : 384,234.93 = 131,418.06 : x
  2. Step 2: Convert to fraction form
    256,156.62/384,234.93 = 131,418.06/x
  3. Step 3: Cross multiply
    256,156.62x = 384,234.93 × 131,418.06
  4. Step 4: Simplify right side
    256,156.62x = 50,495,409,084.84
  5. Step 5: Solve for x
    x = 50,495,409,084.84/256,156.62
  6. Step 6: Final answer
    x = 197,127.09

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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.