Home / 306,228.60-422,595.04-170,258.28

Finding the Fourth Proportional to 306,228.60, 422,595.04 and 170,258.28

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Solution

The fourth proportional to 306,228.60, 422,595.04 and 170,258.28 is: 234,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,228.60 : 422,595.04 = 170,258.28 : x
  2. Step 2: Convert to fraction form
    306,228.60/422,595.04 = 170,258.28/x
  3. Step 3: Cross multiply
    306,228.60x = 422,595.04 × 170,258.28
  4. Step 4: Simplify right side
    306,228.60x = 71,950,304,646.93
  5. Step 5: Solve for x
    x = 71,950,304,646.93/306,228.60
  6. Step 6: Final answer
    x = 234,956.19

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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.