Home / 211,529.80-317,294.70-207,843.40

Finding the Fourth Proportional to 211,529.80, 317,294.70 and 207,843.40

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Solution

The fourth proportional to 211,529.80, 317,294.70 and 207,843.40 is: 311,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,529.80 : 317,294.70 = 207,843.40 : x
  2. Step 2: Convert to fraction form
    211,529.80/317,294.70 = 207,843.40/x
  3. Step 3: Cross multiply
    211,529.80x = 317,294.70 × 207,843.40
  4. Step 4: Simplify right side
    211,529.80x = 65,947,609,249.98
  5. Step 5: Solve for x
    x = 65,947,609,249.98/211,529.80
  6. Step 6: Final answer
    x = 311,765.10

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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.