Home / 281,555.32-421,351.20-230,362.70

Finding the Fourth Proportional to 281,555.32, 421,351.20 and 230,362.70

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Solution

The fourth proportional to 281,555.32, 421,351.20 and 230,362.70 is: 344,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,555.32 : 421,351.20 = 230,362.70 : x
  2. Step 2: Convert to fraction form
    281,555.32/421,351.20 = 230,362.70/x
  3. Step 3: Cross multiply
    281,555.32x = 421,351.20 × 230,362.70
  4. Step 4: Simplify right side
    281,555.32x = 97,063,600,080.24
  5. Step 5: Solve for x
    x = 97,063,600,080.24/281,555.32
  6. Step 6: Final answer
    x = 344,740.78

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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.