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Finding the Fourth Proportional to 1,215.89, 1,823.63 and 350

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Solution

The fourth proportional to 1,215.89, 1,823.63 and 350 is: 524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.89 : 1,823.63 = 350 : x
  2. Step 2: Convert to fraction form
    1,215.89/1,823.63 = 350/x
  3. Step 3: Cross multiply
    1,215.89x = 1,823.63 × 350
  4. Step 4: Simplify right side
    1,215.89x = 638,270.50
  5. Step 5: Solve for x
    x = 638,270.50/1,215.89
  6. Step 6: Final answer
    x = 524.94

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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.