Home / 305,238.06-421,224.07-169,272.27

Finding the Fourth Proportional to 305,238.06, 421,224.07 and 169,272.27

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Solution

The fourth proportional to 305,238.06, 421,224.07 and 169,272.27 is: 233,593.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,238.06 : 421,224.07 = 169,272.27 : x
  2. Step 2: Convert to fraction form
    305,238.06/421,224.07 = 169,272.27/x
  3. Step 3: Cross multiply
    305,238.06x = 421,224.07 × 169,272.27
  4. Step 4: Simplify right side
    305,238.06x = 71,301,554,084.36
  5. Step 5: Solve for x
    x = 71,301,554,084.36/305,238.06
  6. Step 6: Final answer
    x = 233,593.26

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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.