Home / 211,268.46-291,558.52-120,639.18

Finding the Fourth Proportional to 211,268.46, 291,558.52 and 120,639.18

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Solution

The fourth proportional to 211,268.46, 291,558.52 and 120,639.18 is: 166,486.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,268.46 : 291,558.52 = 120,639.18 : x
  2. Step 2: Convert to fraction form
    211,268.46/291,558.52 = 120,639.18/x
  3. Step 3: Cross multiply
    211,268.46x = 291,558.52 × 120,639.18
  4. Step 4: Simplify right side
    211,268.46x = 35,173,380,774.81
  5. Step 5: Solve for x
    x = 35,173,380,774.81/211,268.46
  6. Step 6: Final answer
    x = 166,486.66

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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.