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Finding the Fourth Proportional to 304,378.85, 420,027.49 and 166,554.80

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Solution

The fourth proportional to 304,378.85, 420,027.49 and 166,554.80 is: 229,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,378.85 : 420,027.49 = 166,554.80 : x
  2. Step 2: Convert to fraction form
    304,378.85/420,027.49 = 166,554.80/x
  3. Step 3: Cross multiply
    304,378.85x = 420,027.49 × 166,554.80
  4. Step 4: Simplify right side
    304,378.85x = 69,957,592,074.93
  5. Step 5: Solve for x
    x = 69,957,592,074.93/304,378.85
  6. Step 6: Final answer
    x = 229,837.23

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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.