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Finding the Fourth Proportional to 304,975.51, 420,854.05 and 169,015.27

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Solution

The fourth proportional to 304,975.51, 420,854.05 and 169,015.27 is: 233,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,975.51 : 420,854.05 = 169,015.27 : x
  2. Step 2: Convert to fraction form
    304,975.51/420,854.05 = 169,015.27/x
  3. Step 3: Cross multiply
    304,975.51x = 420,854.05 × 169,015.27
  4. Step 4: Simplify right side
    304,975.51x = 71,130,760,891.34
  5. Step 5: Solve for x
    x = 71,130,760,891.34/304,975.51
  6. Step 6: Final answer
    x = 233,234.34

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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.