Home / 281,015.40-421,438.14-147,822.24

Finding the Fourth Proportional to 281,015.40, 421,438.14 and 147,822.24

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Solution

The fourth proportional to 281,015.40, 421,438.14 and 147,822.24 is: 221,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,015.40 : 421,438.14 = 147,822.24 : x
  2. Step 2: Convert to fraction form
    281,015.40/421,438.14 = 147,822.24/x
  3. Step 3: Cross multiply
    281,015.40x = 421,438.14 × 147,822.24
  4. Step 4: Simplify right side
    281,015.40x = 62,297,929,876.23
  5. Step 5: Solve for x
    x = 62,297,929,876.23/281,015.40
  6. Step 6: Final answer
    x = 221,688.67

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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.