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Finding the Fourth Proportional to 304,818.58, 420,656.37 and 173,993.54

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Solution

The fourth proportional to 304,818.58, 420,656.37 and 173,993.54 is: 240,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,818.58 : 420,656.37 = 173,993.54 : x
  2. Step 2: Convert to fraction form
    304,818.58/420,656.37 = 173,993.54/x
  3. Step 3: Cross multiply
    304,818.58x = 420,656.37 × 173,993.54
  4. Step 4: Simplify right side
    304,818.58x = 73,191,490,939.85
  5. Step 5: Solve for x
    x = 73,191,490,939.85/304,818.58
  6. Step 6: Final answer
    x = 240,114.93

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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.