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Finding the Fourth Proportional to 275,735.68, 380,492.49 and 153,231.67

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Solution

The fourth proportional to 275,735.68, 380,492.49 and 153,231.67 is: 211,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,735.68 : 380,492.49 = 153,231.67 : x
  2. Step 2: Convert to fraction form
    275,735.68/380,492.49 = 153,231.67/x
  3. Step 3: Cross multiply
    275,735.68x = 380,492.49 × 153,231.67
  4. Step 4: Simplify right side
    275,735.68x = 58,303,499,665.16
  5. Step 5: Solve for x
    x = 58,303,499,665.16/275,735.68
  6. Step 6: Final answer
    x = 211,447.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.