Home / 218,891.21-302,023.68-132,895.40

Finding the Fourth Proportional to 218,891.21, 302,023.68 and 132,895.40

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Solution

The fourth proportional to 218,891.21, 302,023.68 and 132,895.40 is: 183,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,891.21 : 302,023.68 = 132,895.40 : x
  2. Step 2: Convert to fraction form
    218,891.21/302,023.68 = 132,895.40/x
  3. Step 3: Cross multiply
    218,891.21x = 302,023.68 × 132,895.40
  4. Step 4: Simplify right side
    218,891.21x = 40,137,556,252.95
  5. Step 5: Solve for x
    x = 40,137,556,252.95/218,891.21
  6. Step 6: Final answer
    x = 183,367.61

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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.