Home / 211,319.16-291,627.60-115,825.86

Finding the Fourth Proportional to 211,319.16, 291,627.60 and 115,825.86

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Solution

The fourth proportional to 211,319.16, 291,627.60 and 115,825.86 is: 159,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,319.16 : 291,627.60 = 115,825.86 : x
  2. Step 2: Convert to fraction form
    211,319.16/291,627.60 = 115,825.86/x
  3. Step 3: Cross multiply
    211,319.16x = 291,627.60 × 115,825.86
  4. Step 4: Simplify right side
    211,319.16x = 33,778,017,569.74
  5. Step 5: Solve for x
    x = 33,778,017,569.74/211,319.16
  6. Step 6: Final answer
    x = 159,843.61

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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.