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Finding the Fourth Proportional to 308,095.40, 461,912.70 and 168,012.20

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Solution

The fourth proportional to 308,095.40, 461,912.70 and 168,012.20 is: 251,892.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,095.40 : 461,912.70 = 168,012.20 : x
  2. Step 2: Convert to fraction form
    308,095.40/461,912.70 = 168,012.20/x
  3. Step 3: Cross multiply
    308,095.40x = 461,912.70 × 168,012.20
  4. Step 4: Simplify right side
    308,095.40x = 77,606,968,934.94
  5. Step 5: Solve for x
    x = 77,606,968,934.94/308,095.40
  6. Step 6: Final answer
    x = 251,892.66

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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.