Home / 211,367.43-291,683.70-115,874.78

Finding the Fourth Proportional to 211,367.43, 291,683.70 and 115,874.78

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Solution

The fourth proportional to 211,367.43, 291,683.70 and 115,874.78 is: 159,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,367.43 : 291,683.70 = 115,874.78 : x
  2. Step 2: Convert to fraction form
    211,367.43/291,683.70 = 115,874.78/x
  3. Step 3: Cross multiply
    211,367.43x = 291,683.70 × 115,874.78
  4. Step 4: Simplify right side
    211,367.43x = 33,798,783,108.67
  5. Step 5: Solve for x
    x = 33,798,783,108.67/211,367.43
  6. Step 6: Final answer
    x = 159,905.35

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1.5x scale

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.