Home / 211,058.07-291,219.62-143,130.39

Finding the Fourth Proportional to 211,058.07, 291,219.62 and 143,130.39

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Solution

The fourth proportional to 211,058.07, 291,219.62 and 143,130.39 is: 197,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,058.07 : 291,219.62 = 143,130.39 : x
  2. Step 2: Convert to fraction form
    211,058.07/291,219.62 = 143,130.39/x
  3. Step 3: Cross multiply
    211,058.07x = 291,219.62 × 143,130.39
  4. Step 4: Simplify right side
    211,058.07x = 41,682,377,070.60
  5. Step 5: Solve for x
    x = 41,682,377,070.60/211,058.07
  6. Step 6: Final answer
    x = 197,492.46

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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.