Home / 211,317.40-291,617.40-115,823.80

Finding the Fourth Proportional to 211,317.40, 291,617.40 and 115,823.80

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Solution

The fourth proportional to 211,317.40, 291,617.40 and 115,823.80 is: 159,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,317.40 : 291,617.40 = 115,823.80 : x
  2. Step 2: Convert to fraction form
    211,317.40/291,617.40 = 115,823.80/x
  3. Step 3: Cross multiply
    211,317.40x = 291,617.40 × 115,823.80
  4. Step 4: Simplify right side
    211,317.40x = 33,776,235,119.42
  5. Step 5: Solve for x
    x = 33,776,235,119.42/211,317.40
  6. Step 6: Final answer
    x = 159,836.51

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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.