Home / 211,604.50-317,425.38-78,486.22

Finding the Fourth Proportional to 211,604.50, 317,425.38 and 78,486.22

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Solution

The fourth proportional to 211,604.50, 317,425.38 and 78,486.22 is: 117,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,604.50 : 317,425.38 = 78,486.22 : x
  2. Step 2: Convert to fraction form
    211,604.50/317,425.38 = 78,486.22/x
  3. Step 3: Cross multiply
    211,604.50x = 317,425.38 × 78,486.22
  4. Step 4: Simplify right side
    211,604.50x = 24,913,518,208.26
  5. Step 5: Solve for x
    x = 24,913,518,208.26/211,604.50
  6. Step 6: Final answer
    x = 117,736.24

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1.5x scale

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.