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Finding the Fourth Proportional to 281,515.80, 422,274.51 and 141,241.62

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Solution

The fourth proportional to 281,515.80, 422,274.51 and 141,241.62 is: 211,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,515.80 : 422,274.51 = 141,241.62 : x
  2. Step 2: Convert to fraction form
    281,515.80/422,274.51 = 141,241.62/x
  3. Step 3: Cross multiply
    281,515.80x = 422,274.51 × 141,241.62
  4. Step 4: Simplify right side
    281,515.80x = 59,642,735,877.11
  5. Step 5: Solve for x
    x = 59,642,735,877.11/281,515.80
  6. Step 6: Final answer
    x = 211,862.84

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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.