Home / 256,072.20-384,108.30-89,838.60

Finding the Fourth Proportional to 256,072.20, 384,108.30 and 89,838.60

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Solution

The fourth proportional to 256,072.20, 384,108.30 and 89,838.60 is: 134,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,072.20 : 384,108.30 = 89,838.60 : x
  2. Step 2: Convert to fraction form
    256,072.20/384,108.30 = 89,838.60/x
  3. Step 3: Cross multiply
    256,072.20x = 384,108.30 × 89,838.60
  4. Step 4: Simplify right side
    256,072.20x = 34,507,751,920.38
  5. Step 5: Solve for x
    x = 34,507,751,920.38/256,072.20
  6. Step 6: Final answer
    x = 134,757.90

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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.