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Finding the Fourth Proportional to 253,885.92, 380,730.39 and 135,492.67

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Solution

The fourth proportional to 253,885.92, 380,730.39 and 135,492.67 is: 203,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,885.92 : 380,730.39 = 135,492.67 : x
  2. Step 2: Convert to fraction form
    253,885.92/380,730.39 = 135,492.67/x
  3. Step 3: Cross multiply
    253,885.92x = 380,730.39 × 135,492.67
  4. Step 4: Simplify right side
    253,885.92x = 51,586,177,091.24
  5. Step 5: Solve for x
    x = 51,586,177,091.24/253,885.92
  6. Step 6: Final answer
    x = 203,186.44

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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.