Home / 353,749.20-488,149.28-200,790.56

Finding the Fourth Proportional to 353,749.20, 488,149.28 and 200,790.56

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Solution

The fourth proportional to 353,749.20, 488,149.28 and 200,790.56 is: 277,077.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,749.20 : 488,149.28 = 200,790.56 : x
  2. Step 2: Convert to fraction form
    353,749.20/488,149.28 = 200,790.56/x
  3. Step 3: Cross multiply
    353,749.20x = 488,149.28 × 200,790.56
  4. Step 4: Simplify right side
    353,749.20x = 98,015,767,294.80
  5. Step 5: Solve for x
    x = 98,015,767,294.80/353,749.20
  6. Step 6: Final answer
    x = 277,077.00

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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.