Home / 251,290.19-346,770.95-143,870.21

Finding the Fourth Proportional to 251,290.19, 346,770.95 and 143,870.21

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Solution

The fourth proportional to 251,290.19, 346,770.95 and 143,870.21 is: 198,535.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,290.19 : 346,770.95 = 143,870.21 : x
  2. Step 2: Convert to fraction form
    251,290.19/346,770.95 = 143,870.21/x
  3. Step 3: Cross multiply
    251,290.19x = 346,770.95 × 143,870.21
  4. Step 4: Simplify right side
    251,290.19x = 49,890,008,679.05
  5. Step 5: Solve for x
    x = 49,890,008,679.05/251,290.19
  6. Step 6: Final answer
    x = 198,535.44

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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.