Home / 355,824.50-490,989.32-212,554.13

Finding the Fourth Proportional to 355,824.50, 490,989.32 and 212,554.13

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Solution

The fourth proportional to 355,824.50, 490,989.32 and 212,554.13 is: 293,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,824.50 : 490,989.32 = 212,554.13 : x
  2. Step 2: Convert to fraction form
    355,824.50/490,989.32 = 212,554.13/x
  3. Step 3: Cross multiply
    355,824.50x = 490,989.32 × 212,554.13
  4. Step 4: Simplify right side
    355,824.50x = 104,361,808,713.67
  5. Step 5: Solve for x
    x = 104,361,808,713.67/355,824.50
  6. Step 6: Final answer
    x = 293,295.73

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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.