Home / 211,801.32-317,608.62-99,513.48

Finding the Fourth Proportional to 211,801.32, 317,608.62 and 99,513.48

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Solution

The fourth proportional to 211,801.32, 317,608.62 and 99,513.48 is: 149,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,801.32 : 317,608.62 = 99,513.48 : x
  2. Step 2: Convert to fraction form
    211,801.32/317,608.62 = 99,513.48/x
  3. Step 3: Cross multiply
    211,801.32x = 317,608.62 × 99,513.48
  4. Step 4: Simplify right side
    211,801.32x = 31,606,339,054.20
  5. Step 5: Solve for x
    x = 31,606,339,054.20/211,801.32
  6. Step 6: Final answer
    x = 149,226.36

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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.