Home / 354,823.48-489,583.30-203,891.32

Finding the Fourth Proportional to 354,823.48, 489,583.30 and 203,891.32

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Solution

The fourth proportional to 354,823.48, 489,583.30 and 203,891.32 is: 281,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,823.48 : 489,583.30 = 203,891.32 : x
  2. Step 2: Convert to fraction form
    354,823.48/489,583.30 = 203,891.32/x
  3. Step 3: Cross multiply
    354,823.48x = 489,583.30 × 203,891.32
  4. Step 4: Simplify right side
    354,823.48x = 99,821,782,839.04
  5. Step 5: Solve for x
    x = 99,821,782,839.04/354,823.48
  6. Step 6: Final answer
    x = 281,328.01

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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.