Home / 746.11-1,118.40-307.18

Finding the Fourth Proportional to 746.11, 1,118.40 and 307.18

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Solution

The fourth proportional to 746.11, 1,118.40 and 307.18 is: 460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.11 : 1,118.40 = 307.18 : x
  2. Step 2: Convert to fraction form
    746.11/1,118.40 = 307.18/x
  3. Step 3: Cross multiply
    746.11x = 1,118.40 × 307.18
  4. Step 4: Simplify right side
    746.11x = 343,550.11
  5. Step 5: Solve for x
    x = 343,550.11/746.11
  6. Step 6: Final answer
    x = 460.46

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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.