Home / 211,328.28-291,640.50-115,834.95

Finding the Fourth Proportional to 211,328.28, 291,640.50 and 115,834.95

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Solution

The fourth proportional to 211,328.28, 291,640.50 and 115,834.95 is: 159,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,328.28 : 291,640.50 = 115,834.95 : x
  2. Step 2: Convert to fraction form
    211,328.28/291,640.50 = 115,834.95/x
  3. Step 3: Cross multiply
    211,328.28x = 291,640.50 × 115,834.95
  4. Step 4: Simplify right side
    211,328.28x = 33,782,162,735.48
  5. Step 5: Solve for x
    x = 33,782,162,735.48/211,328.28
  6. Step 6: Final answer
    x = 159,856.33

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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.