Home / 211,235.50-291,504.99-115,745.82

Finding the Fourth Proportional to 211,235.50, 291,504.99 and 115,745.82

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Solution

The fourth proportional to 211,235.50, 291,504.99 and 115,745.82 is: 159,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,235.50 : 291,504.99 = 115,745.82 : x
  2. Step 2: Convert to fraction form
    211,235.50/291,504.99 = 115,745.82/x
  3. Step 3: Cross multiply
    211,235.50x = 291,504.99 × 115,745.82
  4. Step 4: Simplify right side
    211,235.50x = 33,740,484,101.64
  5. Step 5: Solve for x
    x = 33,740,484,101.64/211,235.50
  6. Step 6: Final answer
    x = 159,729.23

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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.