Home / 211,318.71-291,619.80-115,823.35

Finding the Fourth Proportional to 211,318.71, 291,619.80 and 115,823.35

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Solution

The fourth proportional to 211,318.71, 291,619.80 and 115,823.35 is: 159,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,318.71 : 291,619.80 = 115,823.35 : x
  2. Step 2: Convert to fraction form
    211,318.71/291,619.80 = 115,823.35/x
  3. Step 3: Cross multiply
    211,318.71x = 291,619.80 × 115,823.35
  4. Step 4: Simplify right side
    211,318.71x = 33,776,382,162.33
  5. Step 5: Solve for x
    x = 33,776,382,162.33/211,318.71
  6. Step 6: Final answer
    x = 159,836.21

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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.