Home / 211,008.32-291,191.94-115,520.96

Finding the Fourth Proportional to 211,008.32, 291,191.94 and 115,520.96

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Solution

The fourth proportional to 211,008.32, 291,191.94 and 115,520.96 is: 159,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,008.32 : 291,191.94 = 115,520.96 : x
  2. Step 2: Convert to fraction form
    211,008.32/291,191.94 = 115,520.96/x
  3. Step 3: Cross multiply
    211,008.32x = 291,191.94 × 115,520.96
  4. Step 4: Simplify right side
    211,008.32x = 33,638,772,453.06
  5. Step 5: Solve for x
    x = 33,638,772,453.06/211,008.32
  6. Step 6: Final answer
    x = 159,419.18

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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.