Home / 220,436.64-302,221.23-216,450.83

Finding the Fourth Proportional to 220,436.64, 302,221.23 and 216,450.83

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Solution

The fourth proportional to 220,436.64, 302,221.23 and 216,450.83 is: 296,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,436.64 : 302,221.23 = 216,450.83 : x
  2. Step 2: Convert to fraction form
    220,436.64/302,221.23 = 216,450.83/x
  3. Step 3: Cross multiply
    220,436.64x = 302,221.23 × 216,450.83
  4. Step 4: Simplify right side
    220,436.64x = 65,416,036,020.98
  5. Step 5: Solve for x
    x = 65,416,036,020.98/220,436.64
  6. Step 6: Final answer
    x = 296,756.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.