Home / 211,010.11-291,199.08-115,516.51

Finding the Fourth Proportional to 211,010.11, 291,199.08 and 115,516.51

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Solution

The fourth proportional to 211,010.11, 291,199.08 and 115,516.51 is: 159,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,010.11 : 291,199.08 = 115,516.51 : x
  2. Step 2: Convert to fraction form
    211,010.11/291,199.08 = 115,516.51/x
  3. Step 3: Cross multiply
    211,010.11x = 291,199.08 × 115,516.51
  4. Step 4: Simplify right side
    211,010.11x = 33,638,301,436.81
  5. Step 5: Solve for x
    x = 33,638,301,436.81/211,010.11
  6. Step 6: Final answer
    x = 159,415.59

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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.