Home / 305,284.19-421,317.35-169,361.89

Finding the Fourth Proportional to 305,284.19, 421,317.35 and 169,361.89

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Solution

The fourth proportional to 305,284.19, 421,317.35 and 169,361.89 is: 233,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,284.19 : 421,317.35 = 169,361.89 : x
  2. Step 2: Convert to fraction form
    305,284.19/421,317.35 = 169,361.89/x
  3. Step 3: Cross multiply
    305,284.19x = 421,317.35 × 169,361.89
  4. Step 4: Simplify right side
    305,284.19x = 71,355,101,420.80
  5. Step 5: Solve for x
    x = 71,355,101,420.80/305,284.19
  6. Step 6: Final answer
    x = 233,733.37

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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.