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Finding the Fourth Proportional to 306,407.01, 422,867.22 and 170,466.57

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Solution

The fourth proportional to 306,407.01, 422,867.22 and 170,466.57 is: 235,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,407.01 : 422,867.22 = 170,466.57 : x
  2. Step 2: Convert to fraction form
    306,407.01/422,867.22 = 170,466.57/x
  3. Step 3: Cross multiply
    306,407.01x = 422,867.22 × 170,466.57
  4. Step 4: Simplify right side
    306,407.01x = 72,084,724,558.84
  5. Step 5: Solve for x
    x = 72,084,724,558.84/306,407.01
  6. Step 6: Final answer
    x = 235,258.08

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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.