Home / 213,364.80-320,047.20-196,257.60

Finding the Fourth Proportional to 213,364.80, 320,047.20 and 196,257.60

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Solution

The fourth proportional to 213,364.80, 320,047.20 and 196,257.60 is: 294,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,364.80 : 320,047.20 = 196,257.60 : x
  2. Step 2: Convert to fraction form
    213,364.80/320,047.20 = 196,257.60/x
  3. Step 3: Cross multiply
    213,364.80x = 320,047.20 × 196,257.60
  4. Step 4: Simplify right side
    213,364.80x = 62,811,695,358.72
  5. Step 5: Solve for x
    x = 62,811,695,358.72/213,364.80
  6. Step 6: Final answer
    x = 294,386.40

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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.