Home / 211,975.20-317,962.80-201,607.20

Finding the Fourth Proportional to 211,975.20, 317,962.80 and 201,607.20

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Solution

The fourth proportional to 211,975.20, 317,962.80 and 201,607.20 is: 302,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,975.20 : 317,962.80 = 201,607.20 : x
  2. Step 2: Convert to fraction form
    211,975.20/317,962.80 = 201,607.20/x
  3. Step 3: Cross multiply
    211,975.20x = 317,962.80 × 201,607.20
  4. Step 4: Simplify right side
    211,975.20x = 64,103,589,812.16
  5. Step 5: Solve for x
    x = 64,103,589,812.16/211,975.20
  6. Step 6: Final answer
    x = 302,410.80

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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.