Home / 281,715.21-388,594.26-230,107.30

Finding the Fourth Proportional to 281,715.21, 388,594.26 and 230,107.30

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Solution

The fourth proportional to 281,715.21, 388,594.26 and 230,107.30 is: 317,406.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,715.21 : 388,594.26 = 230,107.30 : x
  2. Step 2: Convert to fraction form
    281,715.21/388,594.26 = 230,107.30/x
  3. Step 3: Cross multiply
    281,715.21x = 388,594.26 × 230,107.30
  4. Step 4: Simplify right side
    281,715.21x = 89,418,374,992.61
  5. Step 5: Solve for x
    x = 89,418,374,992.61/281,715.21
  6. Step 6: Final answer
    x = 317,406.98

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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.