Home / 211,389.60-291,711.33-115,893.03

Finding the Fourth Proportional to 211,389.60, 291,711.33 and 115,893.03

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Solution

The fourth proportional to 211,389.60, 291,711.33 and 115,893.03 is: 159,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,389.60 : 291,711.33 = 115,893.03 : x
  2. Step 2: Convert to fraction form
    211,389.60/291,711.33 = 115,893.03/x
  3. Step 3: Cross multiply
    211,389.60x = 291,711.33 × 115,893.03
  4. Step 4: Simplify right side
    211,389.60x = 33,807,309,919.03
  5. Step 5: Solve for x
    x = 33,807,309,919.03/211,389.60
  6. Step 6: Final answer
    x = 159,928.92

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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.