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Finding the Fourth Proportional to 308,103, 425,109.27 and 178,964.75

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Solution

The fourth proportional to 308,103, 425,109.27 and 178,964.75 is: 246,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,103 : 425,109.27 = 178,964.75 : x
  2. Step 2: Convert to fraction form
    308,103/425,109.27 = 178,964.75/x
  3. Step 3: Cross multiply
    308,103x = 425,109.27 × 178,964.75
  4. Step 4: Simplify right side
    308,103x = 76,079,574,228.23
  5. Step 5: Solve for x
    x = 76,079,574,228.23/308,103
  6. Step 6: Final answer
    x = 246,929.03

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1.5x scale

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.