Home / 305,316.06-421,336.26-171,180.06

Finding the Fourth Proportional to 305,316.06, 421,336.26 and 171,180.06

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Solution

The fourth proportional to 305,316.06, 421,336.26 and 171,180.06 is: 236,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,316.06 : 421,336.26 = 171,180.06 : x
  2. Step 2: Convert to fraction form
    305,316.06/421,336.26 = 171,180.06/x
  3. Step 3: Cross multiply
    305,316.06x = 421,336.26 × 171,180.06
  4. Step 4: Simplify right side
    305,316.06x = 72,124,366,266.98
  5. Step 5: Solve for x
    x = 72,124,366,266.98/305,316.06
  6. Step 6: Final answer
    x = 236,228.54

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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.