Home / 213,609.28-320,225.34-80,582.95

Finding the Fourth Proportional to 213,609.28, 320,225.34 and 80,582.95

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Solution

The fourth proportional to 213,609.28, 320,225.34 and 80,582.95 is: 120,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,609.28 : 320,225.34 = 80,582.95 : x
  2. Step 2: Convert to fraction form
    213,609.28/320,225.34 = 80,582.95/x
  3. Step 3: Cross multiply
    213,609.28x = 320,225.34 × 80,582.95
  4. Step 4: Simplify right side
    213,609.28x = 25,804,702,561.95
  5. Step 5: Solve for x
    x = 25,804,702,561.95/213,609.28
  6. Step 6: Final answer
    x = 120,803.28

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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.