Home / 305,445.48-421,537.92-169,505.22

Finding the Fourth Proportional to 305,445.48, 421,537.92 and 169,505.22

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Solution

The fourth proportional to 305,445.48, 421,537.92 and 169,505.22 is: 233,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,445.48 : 421,537.92 = 169,505.22 : x
  2. Step 2: Convert to fraction form
    305,445.48/421,537.92 = 169,505.22/x
  3. Step 3: Cross multiply
    305,445.48x = 421,537.92 × 169,505.22
  4. Step 4: Simplify right side
    305,445.48x = 71,452,877,867.94
  5. Step 5: Solve for x
    x = 71,452,877,867.94/305,445.48
  6. Step 6: Final answer
    x = 233,930.05

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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.