Home / 421,634.58-631,438.41-241,172.91

Finding the Fourth Proportional to 421,634.58, 631,438.41 and 241,172.91

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Solution

The fourth proportional to 421,634.58, 631,438.41 and 241,172.91 is: 361,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,634.58 : 631,438.41 = 241,172.91 : x
  2. Step 2: Convert to fraction form
    421,634.58/631,438.41 = 241,172.91/x
  3. Step 3: Cross multiply
    421,634.58x = 631,438.41 × 241,172.91
  4. Step 4: Simplify right side
    421,634.58x = 152,285,838,825.47
  5. Step 5: Solve for x
    x = 152,285,838,825.47/421,634.58
  6. Step 6: Final answer
    x = 361,179.67

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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.