Home / 305,564.09-421,675.39-169,594.54

Finding the Fourth Proportional to 305,564.09, 421,675.39 and 169,594.54

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Solution

The fourth proportional to 305,564.09, 421,675.39 and 169,594.54 is: 234,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,564.09 : 421,675.39 = 169,594.54 : x
  2. Step 2: Convert to fraction form
    305,564.09/421,675.39 = 169,594.54/x
  3. Step 3: Cross multiply
    305,564.09x = 421,675.39 × 169,594.54
  4. Step 4: Simplify right side
    305,564.09x = 71,513,841,687.99
  5. Step 5: Solve for x
    x = 71,513,841,687.99/305,564.09
  6. Step 6: Final answer
    x = 234,038.77

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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.