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Finding the Fourth Proportional to 213,363.45, 320,202.65 and 101,043.45

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Solution

The fourth proportional to 213,363.45, 320,202.65 and 101,043.45 is: 151,639.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,363.45 : 320,202.65 = 101,043.45 : x
  2. Step 2: Convert to fraction form
    213,363.45/320,202.65 = 101,043.45/x
  3. Step 3: Cross multiply
    213,363.45x = 320,202.65 × 101,043.45
  4. Step 4: Simplify right side
    213,363.45x = 32,354,380,707.75
  5. Step 5: Solve for x
    x = 32,354,380,707.75/213,363.45
  6. Step 6: Final answer
    x = 151,639.75

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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.