Home / 281,090.28-387,770.58-173,621.64

Finding the Fourth Proportional to 281,090.28, 387,770.58 and 173,621.64

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Solution

The fourth proportional to 281,090.28, 387,770.58 and 173,621.64 is: 239,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,090.28 : 387,770.58 = 173,621.64 : x
  2. Step 2: Convert to fraction form
    281,090.28/387,770.58 = 173,621.64/x
  3. Step 3: Cross multiply
    281,090.28x = 387,770.58 × 173,621.64
  4. Step 4: Simplify right side
    281,090.28x = 67,325,364,043.35
  5. Step 5: Solve for x
    x = 67,325,364,043.35/281,090.28
  6. Step 6: Final answer
    x = 239,515.09

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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.