Home / 305,537.90-421,646.85-169,580.61

Finding the Fourth Proportional to 305,537.90, 421,646.85 and 169,580.61

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Solution

The fourth proportional to 305,537.90, 421,646.85 and 169,580.61 is: 234,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,537.90 : 421,646.85 = 169,580.61 : x
  2. Step 2: Convert to fraction form
    305,537.90/421,646.85 = 169,580.61/x
  3. Step 3: Cross multiply
    305,537.90x = 421,646.85 × 169,580.61
  4. Step 4: Simplify right side
    305,537.90x = 71,503,130,027.58
  5. Step 5: Solve for x
    x = 71,503,130,027.58/305,537.90
  6. Step 6: Final answer
    x = 234,023.77

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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.