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Finding the Fourth Proportional to 215,409.76, 323,180.56 and 110,303.12

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Solution

The fourth proportional to 215,409.76, 323,180.56 and 110,303.12 is: 165,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,409.76 : 323,180.56 = 110,303.12 : x
  2. Step 2: Convert to fraction form
    215,409.76/323,180.56 = 110,303.12/x
  3. Step 3: Cross multiply
    215,409.76x = 323,180.56 × 110,303.12
  4. Step 4: Simplify right side
    215,409.76x = 35,647,824,091.35
  5. Step 5: Solve for x
    x = 35,647,824,091.35/215,409.76
  6. Step 6: Final answer
    x = 165,488.44

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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.