Home / 909.03-1,363.59-361.11

Finding the Fourth Proportional to 909.03, 1,363.59 and 361.11

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Solution

The fourth proportional to 909.03, 1,363.59 and 361.11 is: 541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    909.03 : 1,363.59 = 361.11 : x
  2. Step 2: Convert to fraction form
    909.03/1,363.59 = 361.11/x
  3. Step 3: Cross multiply
    909.03x = 1,363.59 × 361.11
  4. Step 4: Simplify right side
    909.03x = 492,405.98
  5. Step 5: Solve for x
    x = 492,405.98/909.03
  6. Step 6: Final answer
    x = 541.68

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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.