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Finding the Fourth Proportional to 308,145.30, 461,343.15 and 308,145.30

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Solution

The fourth proportional to 308,145.30, 461,343.15 and 308,145.30 is: 461,343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,145.30 : 461,343.15 = 308,145.30 : x
  2. Step 2: Convert to fraction form
    308,145.30/461,343.15 = 308,145.30/x
  3. Step 3: Cross multiply
    308,145.30x = 461,343.15 × 308,145.30
  4. Step 4: Simplify right side
    308,145.30x = 142,160,723,359.70
  5. Step 5: Solve for x
    x = 142,160,723,359.70/308,145.30
  6. Step 6: Final answer
    x = 461,343.15

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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.