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Finding the Fourth Proportional to 352,015.31, 528,021.92 and 304,489.05

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Solution

The fourth proportional to 352,015.31, 528,021.92 and 304,489.05 is: 456,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,015.31 : 528,021.92 = 304,489.05 : x
  2. Step 2: Convert to fraction form
    352,015.31/528,021.92 = 304,489.05/x
  3. Step 3: Cross multiply
    352,015.31x = 528,021.92 × 304,489.05
  4. Step 4: Simplify right side
    352,015.31x = 160,776,891,277.53
  5. Step 5: Solve for x
    x = 160,776,891,277.53/352,015.31
  6. Step 6: Final answer
    x = 456,732.67

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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.