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Finding the Fourth Proportional to 219,475.72, 302,874.90 and 118,873

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Solution

The fourth proportional to 219,475.72, 302,874.90 and 118,873 is: 164,043.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,475.72 : 302,874.90 = 118,873 : x
  2. Step 2: Convert to fraction form
    219,475.72/302,874.90 = 118,873/x
  3. Step 3: Cross multiply
    219,475.72x = 302,874.90 × 118,873
  4. Step 4: Simplify right side
    219,475.72x = 36,003,647,987.70
  5. Step 5: Solve for x
    x = 36,003,647,987.70/219,475.72
  6. Step 6: Final answer
    x = 164,043.88

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1.5x scale

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.