Home / 211,102.51-291,321.90-114,307.42

Finding the Fourth Proportional to 211,102.51, 291,321.90 and 114,307.42

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Solution

The fourth proportional to 211,102.51, 291,321.90 and 114,307.42 is: 157,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,102.51 : 291,321.90 = 114,307.42 : x
  2. Step 2: Convert to fraction form
    211,102.51/291,321.90 = 114,307.42/x
  3. Step 3: Cross multiply
    211,102.51x = 291,321.90 × 114,307.42
  4. Step 4: Simplify right side
    211,102.51x = 33,300,252,750.35
  5. Step 5: Solve for x
    x = 33,300,252,750.35/211,102.51
  6. Step 6: Final answer
    x = 157,744.47

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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.