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Finding the Fourth Proportional to 217,120.44, 299,809.74 and 163,311.72

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Solution

The fourth proportional to 217,120.44, 299,809.74 and 163,311.72 is: 225,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,120.44 : 299,809.74 = 163,311.72 : x
  2. Step 2: Convert to fraction form
    217,120.44/299,809.74 = 163,311.72/x
  3. Step 3: Cross multiply
    217,120.44x = 299,809.74 × 163,311.72
  4. Step 4: Simplify right side
    217,120.44x = 48,962,444,312.15
  5. Step 5: Solve for x
    x = 48,962,444,312.15/217,120.44
  6. Step 6: Final answer
    x = 225,508.22

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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.