Home / 305,229.03-421,237.62-169,275.98

Finding the Fourth Proportional to 305,229.03, 421,237.62 and 169,275.98

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Solution

The fourth proportional to 305,229.03, 421,237.62 and 169,275.98 is: 233,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,229.03 : 421,237.62 = 169,275.98 : x
  2. Step 2: Convert to fraction form
    305,229.03/421,237.62 = 169,275.98/x
  3. Step 3: Cross multiply
    305,229.03x = 421,237.62 × 169,275.98
  4. Step 4: Simplify right side
    305,229.03x = 71,305,410,938.37
  5. Step 5: Solve for x
    x = 71,305,410,938.37/305,229.03
  6. Step 6: Final answer
    x = 233,612.81

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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.