Home / 305,824.82-422,023.64-169,867.40

Finding the Fourth Proportional to 305,824.82, 422,023.64 and 169,867.40

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Solution

The fourth proportional to 305,824.82, 422,023.64 and 169,867.40 is: 234,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,824.82 : 422,023.64 = 169,867.40 : x
  2. Step 2: Convert to fraction form
    305,824.82/422,023.64 = 169,867.40/x
  3. Step 3: Cross multiply
    305,824.82x = 422,023.64 × 169,867.40
  4. Step 4: Simplify right side
    305,824.82x = 71,688,058,465.34
  5. Step 5: Solve for x
    x = 71,688,058,465.34/305,824.82
  6. Step 6: Final answer
    x = 234,408.90

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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.