Home / 281,448.20-421,250.70-218,779.40

Finding the Fourth Proportional to 281,448.20, 421,250.70 and 218,779.40

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Solution

The fourth proportional to 281,448.20, 421,250.70 and 218,779.40 is: 327,452.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,448.20 : 421,250.70 = 218,779.40 : x
  2. Step 2: Convert to fraction form
    281,448.20/421,250.70 = 218,779.40/x
  3. Step 3: Cross multiply
    281,448.20x = 421,250.70 × 218,779.40
  4. Step 4: Simplify right side
    281,448.20x = 92,160,975,395.58
  5. Step 5: Solve for x
    x = 92,160,975,395.58/281,448.20
  6. Step 6: Final answer
    x = 327,452.71

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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.