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Finding the Fourth Proportional to 211,103.64, 291,307.86 and 115,594.92

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Solution

The fourth proportional to 211,103.64, 291,307.86 and 115,594.92 is: 159,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,103.64 : 291,307.86 = 115,594.92 : x
  2. Step 2: Convert to fraction form
    211,103.64/291,307.86 = 115,594.92/x
  3. Step 3: Cross multiply
    211,103.64x = 291,307.86 × 115,594.92
  4. Step 4: Simplify right side
    211,103.64x = 33,673,708,772.07
  5. Step 5: Solve for x
    x = 33,673,708,772.07/211,103.64
  6. Step 6: Final answer
    x = 159,512.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.