Home / 211,081.19-291,281.17-115,569.41

Finding the Fourth Proportional to 211,081.19, 291,281.17 and 115,569.41

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Solution

The fourth proportional to 211,081.19, 291,281.17 and 115,569.41 is: 159,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,081.19 : 291,281.17 = 115,569.41 : x
  2. Step 2: Convert to fraction form
    211,081.19/291,281.17 = 115,569.41/x
  3. Step 3: Cross multiply
    211,081.19x = 291,281.17 × 115,569.41
  4. Step 4: Simplify right side
    211,081.19x = 33,663,192,961.01
  5. Step 5: Solve for x
    x = 33,663,192,961.01/211,081.19
  6. Step 6: Final answer
    x = 159,479.83

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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.