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Finding the Fourth Proportional to 512,096.80, 768,145.20 and 246,376.30

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Solution

The fourth proportional to 512,096.80, 768,145.20 and 246,376.30 is: 369,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,096.80 : 768,145.20 = 246,376.30 : x
  2. Step 2: Convert to fraction form
    512,096.80/768,145.20 = 246,376.30/x
  3. Step 3: Cross multiply
    512,096.80x = 768,145.20 × 246,376.30
  4. Step 4: Simplify right side
    512,096.80x = 189,252,772,238.76
  5. Step 5: Solve for x
    x = 189,252,772,238.76/512,096.80
  6. Step 6: Final answer
    x = 369,564.45

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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.