Home / 256,270.20-383,822.10-131,465.40

Finding the Fourth Proportional to 256,270.20, 383,822.10 and 131,465.40

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Solution

The fourth proportional to 256,270.20, 383,822.10 and 131,465.40 is: 196,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,270.20 : 383,822.10 = 131,465.40 : x
  2. Step 2: Convert to fraction form
    256,270.20/383,822.10 = 131,465.40/x
  3. Step 3: Cross multiply
    256,270.20x = 383,822.10 × 131,465.40
  4. Step 4: Simplify right side
    256,270.20x = 50,459,325,905.34
  5. Step 5: Solve for x
    x = 50,459,325,905.34/256,270.20
  6. Step 6: Final answer
    x = 196,898.92

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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.