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Finding the Fourth Proportional to 298,258.64, 411,608.28 and 170,958.80

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Solution

The fourth proportional to 298,258.64, 411,608.28 and 170,958.80 is: 235,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,258.64 : 411,608.28 = 170,958.80 : x
  2. Step 2: Convert to fraction form
    298,258.64/411,608.28 = 170,958.80/x
  3. Step 3: Cross multiply
    298,258.64x = 411,608.28 × 170,958.80
  4. Step 4: Simplify right side
    298,258.64x = 70,368,057,618.86
  5. Step 5: Solve for x
    x = 70,368,057,618.86/298,258.64
  6. Step 6: Final answer
    x = 235,929.65

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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.