Home / 211,363.90-291,693.36-115,874.62

Finding the Fourth Proportional to 211,363.90, 291,693.36 and 115,874.62

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Solution

The fourth proportional to 211,363.90, 291,693.36 and 115,874.62 is: 159,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,363.90 : 291,693.36 = 115,874.62 : x
  2. Step 2: Convert to fraction form
    211,363.90/291,693.36 = 115,874.62/x
  3. Step 3: Cross multiply
    211,363.90x = 291,693.36 × 115,874.62
  4. Step 4: Simplify right side
    211,363.90x = 33,799,857,246.52
  5. Step 5: Solve for x
    x = 33,799,857,246.52/211,363.90
  6. Step 6: Final answer
    x = 159,913.10

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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.