Home / 211,274.36-291,560.91-115,779

Finding the Fourth Proportional to 211,274.36, 291,560.91 and 115,779

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Solution

The fourth proportional to 211,274.36, 291,560.91 and 115,779 is: 159,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,274.36 : 291,560.91 = 115,779 : x
  2. Step 2: Convert to fraction form
    211,274.36/291,560.91 = 115,779/x
  3. Step 3: Cross multiply
    211,274.36x = 291,560.91 × 115,779
  4. Step 4: Simplify right side
    211,274.36x = 33,756,630,020.00
  5. Step 5: Solve for x
    x = 33,756,630,020.00/211,274.36
  6. Step 6: Final answer
    x = 159,776.28

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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.