Home / 281,938.58-389,039.39-161,087.69

Finding the Fourth Proportional to 281,938.58, 389,039.39 and 161,087.69

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Solution

The fourth proportional to 281,938.58, 389,039.39 and 161,087.69 is: 222,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,938.58 : 389,039.39 = 161,087.69 : x
  2. Step 2: Convert to fraction form
    281,938.58/389,039.39 = 161,087.69/x
  3. Step 3: Cross multiply
    281,938.58x = 389,039.39 × 161,087.69
  4. Step 4: Simplify right side
    281,938.58x = 62,669,455,848.67
  5. Step 5: Solve for x
    x = 62,669,455,848.67/281,938.58
  6. Step 6: Final answer
    x = 222,280.53

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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.