Home / 211,621.80-316,914.30-141,119.40

Finding the Fourth Proportional to 211,621.80, 316,914.30 and 141,119.40

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Solution

The fourth proportional to 211,621.80, 316,914.30 and 141,119.40 is: 211,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,621.80 : 316,914.30 = 141,119.40 : x
  2. Step 2: Convert to fraction form
    211,621.80/316,914.30 = 141,119.40/x
  3. Step 3: Cross multiply
    211,621.80x = 316,914.30 × 141,119.40
  4. Step 4: Simplify right side
    211,621.80x = 44,722,755,867.42
  5. Step 5: Solve for x
    x = 44,722,755,867.42/211,621.80
  6. Step 6: Final answer
    x = 211,333.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.