Home / 290,149.27-400,303.34-189,605.59

Finding the Fourth Proportional to 290,149.27, 400,303.34 and 189,605.59

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Solution

The fourth proportional to 290,149.27, 400,303.34 and 189,605.59 is: 261,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,149.27 : 400,303.34 = 189,605.59 : x
  2. Step 2: Convert to fraction form
    290,149.27/400,303.34 = 189,605.59/x
  3. Step 3: Cross multiply
    290,149.27x = 400,303.34 × 189,605.59
  4. Step 4: Simplify right side
    290,149.27x = 75,899,750,959.67
  5. Step 5: Solve for x
    x = 75,899,750,959.67/290,149.27
  6. Step 6: Final answer
    x = 261,588.63

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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.