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Finding the Fourth Proportional to 329,812.30, 494,718.45 and 130,066.30

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Solution

The fourth proportional to 329,812.30, 494,718.45 and 130,066.30 is: 195,099.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,812.30 : 494,718.45 = 130,066.30 : x
  2. Step 2: Convert to fraction form
    329,812.30/494,718.45 = 130,066.30/x
  3. Step 3: Cross multiply
    329,812.30x = 494,718.45 × 130,066.30
  4. Step 4: Simplify right side
    329,812.30x = 64,346,198,333.24
  5. Step 5: Solve for x
    x = 64,346,198,333.24/329,812.30
  6. Step 6: Final answer
    x = 195,099.45

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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.