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Finding the Fourth Proportional to 308,551.95, 426,208.23 and 236,808.63

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Solution

The fourth proportional to 308,551.95, 426,208.23 and 236,808.63 is: 327,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,551.95 : 426,208.23 = 236,808.63 : x
  2. Step 2: Convert to fraction form
    308,551.95/426,208.23 = 236,808.63/x
  3. Step 3: Cross multiply
    308,551.95x = 426,208.23 × 236,808.63
  4. Step 4: Simplify right side
    308,551.95x = 100,929,787,041.03
  5. Step 5: Solve for x
    x = 100,929,787,041.03/308,551.95
  6. Step 6: Final answer
    x = 327,107.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.