Home / 211,790.40-317,167.20-100,852.80

Finding the Fourth Proportional to 211,790.40, 317,167.20 and 100,852.80

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Solution

The fourth proportional to 211,790.40, 317,167.20 and 100,852.80 is: 151,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,790.40 : 317,167.20 = 100,852.80 : x
  2. Step 2: Convert to fraction form
    211,790.40/317,167.20 = 100,852.80/x
  3. Step 3: Cross multiply
    211,790.40x = 317,167.20 × 100,852.80
  4. Step 4: Simplify right side
    211,790.40x = 31,987,200,188.16
  5. Step 5: Solve for x
    x = 31,987,200,188.16/211,790.40
  6. Step 6: Final answer
    x = 151,032.34

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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.