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Finding the Fourth Proportional to 308,900.85, 463,351.28 and 109,219.65

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Solution

The fourth proportional to 308,900.85, 463,351.28 and 109,219.65 is: 163,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,900.85 : 463,351.28 = 109,219.65 : x
  2. Step 2: Convert to fraction form
    308,900.85/463,351.28 = 109,219.65/x
  3. Step 3: Cross multiply
    308,900.85x = 463,351.28 × 109,219.65
  4. Step 4: Simplify right side
    308,900.85x = 50,607,064,082.55
  5. Step 5: Solve for x
    x = 50,607,064,082.55/308,900.85
  6. Step 6: Final answer
    x = 163,829.48

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Similar ratio
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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.