Home / 306,054.60-422,346.92-170,085.12

Finding the Fourth Proportional to 306,054.60, 422,346.92 and 170,085.12

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Solution

The fourth proportional to 306,054.60, 422,346.92 and 170,085.12 is: 234,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,054.60 : 422,346.92 = 170,085.12 : x
  2. Step 2: Convert to fraction form
    306,054.60/422,346.92 = 170,085.12/x
  3. Step 3: Cross multiply
    306,054.60x = 422,346.92 × 170,085.12
  4. Step 4: Simplify right side
    306,054.60x = 71,834,925,719.40
  5. Step 5: Solve for x
    x = 71,834,925,719.40/306,054.60
  6. Step 6: Final answer
    x = 234,712.78

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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.