Home / 211,383.15-317,080.80-53,611.35

Finding the Fourth Proportional to 211,383.15, 317,080.80 and 53,611.35

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Solution

The fourth proportional to 211,383.15, 317,080.80 and 53,611.35 is: 80,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,383.15 : 317,080.80 = 53,611.35 : x
  2. Step 2: Convert to fraction form
    211,383.15/317,080.80 = 53,611.35/x
  3. Step 3: Cross multiply
    211,383.15x = 317,080.80 × 53,611.35
  4. Step 4: Simplify right side
    211,383.15x = 16,999,129,747.08
  5. Step 5: Solve for x
    x = 16,999,129,747.08/211,383.15
  6. Step 6: Final answer
    x = 80,418.57

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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.