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Finding the Fourth Proportional to 281,119.60, 421,873.80 and 202,290.40

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Solution

The fourth proportional to 281,119.60, 421,873.80 and 202,290.40 is: 303,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,119.60 : 421,873.80 = 202,290.40 : x
  2. Step 2: Convert to fraction form
    281,119.60/421,873.80 = 202,290.40/x
  3. Step 3: Cross multiply
    281,119.60x = 421,873.80 × 202,290.40
  4. Step 4: Simplify right side
    281,119.60x = 85,341,019,751.52
  5. Step 5: Solve for x
    x = 85,341,019,751.52/281,119.60
  6. Step 6: Final answer
    x = 303,575.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.