Home / 1,236.18-1,854.30-370.50

Finding the Fourth Proportional to 1,236.18, 1,854.30 and 370.50

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Solution

The fourth proportional to 1,236.18, 1,854.30 and 370.50 is: 555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.18 : 1,854.30 = 370.50 : x
  2. Step 2: Convert to fraction form
    1,236.18/1,854.30 = 370.50/x
  3. Step 3: Cross multiply
    1,236.18x = 1,854.30 × 370.50
  4. Step 4: Simplify right side
    1,236.18x = 687,018.15
  5. Step 5: Solve for x
    x = 687,018.15/1,236.18
  6. Step 6: Final answer
    x = 555.76

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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.