Home / 211,408.16-291,741.08-115,914.69

Finding the Fourth Proportional to 211,408.16, 291,741.08 and 115,914.69

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Solution

The fourth proportional to 211,408.16, 291,741.08 and 115,914.69 is: 159,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,408.16 : 291,741.08 = 115,914.69 : x
  2. Step 2: Convert to fraction form
    211,408.16/291,741.08 = 115,914.69/x
  3. Step 3: Cross multiply
    211,408.16x = 291,741.08 × 115,914.69
  4. Step 4: Simplify right side
    211,408.16x = 33,817,076,268.89
  5. Step 5: Solve for x
    x = 33,817,076,268.89/211,408.16
  6. Step 6: Final answer
    x = 159,961.08

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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.