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Finding the Fourth Proportional to 290,581.08, 435,059.52 and 156,982.68

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Solution

The fourth proportional to 290,581.08, 435,059.52 and 156,982.68 is: 235,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,581.08 : 435,059.52 = 156,982.68 : x
  2. Step 2: Convert to fraction form
    290,581.08/435,059.52 = 156,982.68/x
  3. Step 3: Cross multiply
    290,581.08x = 435,059.52 × 156,982.68
  4. Step 4: Simplify right side
    290,581.08x = 68,296,809,409.11
  5. Step 5: Solve for x
    x = 68,296,809,409.11/290,581.08
  6. Step 6: Final answer
    x = 235,035.29

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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.