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Finding the Fourth Proportional to 305,835.96, 422,058.54 and 171,697.08

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Solution

The fourth proportional to 305,835.96, 422,058.54 and 171,697.08 is: 236,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,835.96 : 422,058.54 = 171,697.08 : x
  2. Step 2: Convert to fraction form
    305,835.96/422,058.54 = 171,697.08/x
  3. Step 3: Cross multiply
    305,835.96x = 422,058.54 × 171,697.08
  4. Step 4: Simplify right side
    305,835.96x = 72,466,218,907.06
  5. Step 5: Solve for x
    x = 72,466,218,907.06/305,835.96
  6. Step 6: Final answer
    x = 236,944.73

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1.5x scale

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.