Home / 211,072.08-291,279.30-115,580.64

Finding the Fourth Proportional to 211,072.08, 291,279.30 and 115,580.64

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Solution

The fourth proportional to 211,072.08, 291,279.30 and 115,580.64 is: 159,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,072.08 : 291,279.30 = 115,580.64 : x
  2. Step 2: Convert to fraction form
    211,072.08/291,279.30 = 115,580.64/x
  3. Step 3: Cross multiply
    211,072.08x = 291,279.30 × 115,580.64
  4. Step 4: Simplify right side
    211,072.08x = 33,666,247,912.75
  5. Step 5: Solve for x
    x = 33,666,247,912.75/211,072.08
  6. Step 6: Final answer
    x = 159,501.19

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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.