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Finding the Fourth Proportional to 308,557.28, 462,736.64 and 98,145.92

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Solution

The fourth proportional to 308,557.28, 462,736.64 and 98,145.92 is: 147,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,557.28 : 462,736.64 = 98,145.92 : x
  2. Step 2: Convert to fraction form
    308,557.28/462,736.64 = 98,145.92/x
  3. Step 3: Cross multiply
    308,557.28x = 462,736.64 × 98,145.92
  4. Step 4: Simplify right side
    308,557.28x = 45,415,713,250.51
  5. Step 5: Solve for x
    x = 45,415,713,250.51/308,557.28
  6. Step 6: Final answer
    x = 147,187.30

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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.