Home / 211,336.75-291,674.55-130,790.22

Finding the Fourth Proportional to 211,336.75, 291,674.55 and 130,790.22

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Solution

The fourth proportional to 211,336.75, 291,674.55 and 130,790.22 is: 180,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,336.75 : 291,674.55 = 130,790.22 : x
  2. Step 2: Convert to fraction form
    211,336.75/291,674.55 = 130,790.22/x
  3. Step 3: Cross multiply
    211,336.75x = 291,674.55 × 130,790.22
  4. Step 4: Simplify right side
    211,336.75x = 38,148,177,104.53
  5. Step 5: Solve for x
    x = 38,148,177,104.53/211,336.75
  6. Step 6: Final answer
    x = 180,508.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.