Home / 305,460.20-421,544.70-169,504.13

Finding the Fourth Proportional to 305,460.20, 421,544.70 and 169,504.13

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Solution

The fourth proportional to 305,460.20, 421,544.70 and 169,504.13 is: 233,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,460.20 : 421,544.70 = 169,504.13 : x
  2. Step 2: Convert to fraction form
    305,460.20/421,544.70 = 169,504.13/x
  3. Step 3: Cross multiply
    305,460.20x = 421,544.70 × 169,504.13
  4. Step 4: Simplify right side
    305,460.20x = 71,453,565,521.89
  5. Step 5: Solve for x
    x = 71,453,565,521.89/305,460.20
  6. Step 6: Final answer
    x = 233,921.04

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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.