Home / 211,275.11-291,561.94-115,779.75

Finding the Fourth Proportional to 211,275.11, 291,561.94 and 115,779.75

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Solution

The fourth proportional to 211,275.11, 291,561.94 and 115,779.75 is: 159,777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,275.11 : 291,561.94 = 115,779.75 : x
  2. Step 2: Convert to fraction form
    211,275.11/291,561.94 = 115,779.75/x
  3. Step 3: Cross multiply
    211,275.11x = 291,561.94 × 115,779.75
  4. Step 4: Simplify right side
    211,275.11x = 33,756,968,522.72
  5. Step 5: Solve for x
    x = 33,756,968,522.72/211,275.11
  6. Step 6: Final answer
    x = 159,777.31

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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.