Home / 304,979.44-420,865.34-169,012.32

Finding the Fourth Proportional to 304,979.44, 420,865.34 and 169,012.32

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Solution

The fourth proportional to 304,979.44, 420,865.34 and 169,012.32 is: 233,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,979.44 : 420,865.34 = 169,012.32 : x
  2. Step 2: Convert to fraction form
    304,979.44/420,865.34 = 169,012.32/x
  3. Step 3: Cross multiply
    304,979.44x = 420,865.34 × 169,012.32
  4. Step 4: Simplify right side
    304,979.44x = 71,131,427,520.99
  5. Step 5: Solve for x
    x = 71,131,427,520.99/304,979.44
  6. Step 6: Final answer
    x = 233,233.52

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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.