Home / 251,110.81-346,535.31-137,933.56

Finding the Fourth Proportional to 251,110.81, 346,535.31 and 137,933.56

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Solution

The fourth proportional to 251,110.81, 346,535.31 and 137,933.56 is: 190,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,110.81 : 346,535.31 = 137,933.56 : x
  2. Step 2: Convert to fraction form
    251,110.81/346,535.31 = 137,933.56/x
  3. Step 3: Cross multiply
    251,110.81x = 346,535.31 × 137,933.56
  4. Step 4: Simplify right side
    251,110.81x = 47,798,848,974.00
  5. Step 5: Solve for x
    x = 47,798,848,974.00/251,110.81
  6. Step 6: Final answer
    x = 190,349.63

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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.