Home / 305,244.03-421,262.01-169,321.89

Finding the Fourth Proportional to 305,244.03, 421,262.01 and 169,321.89

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Solution

The fourth proportional to 305,244.03, 421,262.01 and 169,321.89 is: 233,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,244.03 : 421,262.01 = 169,321.89 : x
  2. Step 2: Convert to fraction form
    305,244.03/421,262.01 = 169,321.89/x
  3. Step 3: Cross multiply
    305,244.03x = 421,262.01 × 169,321.89
  4. Step 4: Simplify right side
    305,244.03x = 71,328,879,718.40
  5. Step 5: Solve for x
    x = 71,328,879,718.40/305,244.03
  6. Step 6: Final answer
    x = 233,678.21

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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.