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Finding the Fourth Proportional to 308,244.06, 462,366.10 and 86,628.06

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Solution

The fourth proportional to 308,244.06, 462,366.10 and 86,628.06 is: 129,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,244.06 : 462,366.10 = 86,628.06 : x
  2. Step 2: Convert to fraction form
    308,244.06/462,366.10 = 86,628.06/x
  3. Step 3: Cross multiply
    308,244.06x = 462,366.10 × 86,628.06
  4. Step 4: Simplify right side
    308,244.06x = 40,053,878,252.77
  5. Step 5: Solve for x
    x = 40,053,878,252.77/308,244.06
  6. Step 6: Final answer
    x = 129,942.09

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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.