Home / 281,450.76-388,438.92-160,564.20

Finding the Fourth Proportional to 281,450.76, 388,438.92 and 160,564.20

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Solution

The fourth proportional to 281,450.76, 388,438.92 and 160,564.20 is: 221,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,450.76 : 388,438.92 = 160,564.20 : x
  2. Step 2: Convert to fraction form
    281,450.76/388,438.92 = 160,564.20/x
  3. Step 3: Cross multiply
    281,450.76x = 388,438.92 × 160,564.20
  4. Step 4: Simplify right side
    281,450.76x = 62,369,384,438.66
  5. Step 5: Solve for x
    x = 62,369,384,438.66/281,450.76
  6. Step 6: Final answer
    x = 221,599.63

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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.