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Finding the Fourth Proportional to 281,037.60, 421,750.80 and 202,208.40

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Solution

The fourth proportional to 281,037.60, 421,750.80 and 202,208.40 is: 303,452.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037.60 : 421,750.80 = 202,208.40 : x
  2. Step 2: Convert to fraction form
    281,037.60/421,750.80 = 202,208.40/x
  3. Step 3: Cross multiply
    281,037.60x = 421,750.80 × 202,208.40
  4. Step 4: Simplify right side
    281,037.60x = 85,281,554,466.72
  5. Step 5: Solve for x
    x = 85,281,554,466.72/281,037.60
  6. Step 6: Final answer
    x = 303,452.47

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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.