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Finding the Fourth Proportional to 305,554.44, 421,665.28 and 169,588.44

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Solution

The fourth proportional to 305,554.44, 421,665.28 and 169,588.44 is: 234,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,554.44 : 421,665.28 = 169,588.44 : x
  2. Step 2: Convert to fraction form
    305,554.44/421,665.28 = 169,588.44/x
  3. Step 3: Cross multiply
    305,554.44x = 421,665.28 × 169,588.44
  4. Step 4: Simplify right side
    305,554.44x = 71,509,557,037.36
  5. Step 5: Solve for x
    x = 71,509,557,037.36/305,554.44
  6. Step 6: Final answer
    x = 234,032.13

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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.