Home / 281,403.21-388,677.24-204,800.84

Finding the Fourth Proportional to 281,403.21, 388,677.24 and 204,800.84

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Solution

The fourth proportional to 281,403.21, 388,677.24 and 204,800.84 is: 282,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,403.21 : 388,677.24 = 204,800.84 : x
  2. Step 2: Convert to fraction form
    281,403.21/388,677.24 = 204,800.84/x
  3. Step 3: Cross multiply
    281,403.21x = 388,677.24 × 204,800.84
  4. Step 4: Simplify right side
    281,403.21x = 79,601,423,297.50
  5. Step 5: Solve for x
    x = 79,601,423,297.50/281,403.21
  6. Step 6: Final answer
    x = 282,873.19

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1.5x scale

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.