Home / 305,239.44-421,222.52-169,271.20

Finding the Fourth Proportional to 305,239.44, 421,222.52 and 169,271.20

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Solution

The fourth proportional to 305,239.44, 421,222.52 and 169,271.20 is: 233,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,239.44 : 421,222.52 = 169,271.20 : x
  2. Step 2: Convert to fraction form
    305,239.44/421,222.52 = 169,271.20/x
  3. Step 3: Cross multiply
    305,239.44x = 421,222.52 × 169,271.20
  4. Step 4: Simplify right side
    305,239.44x = 71,300,841,427.42
  5. Step 5: Solve for x
    x = 71,300,841,427.42/305,239.44
  6. Step 6: Final answer
    x = 233,589.87

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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.