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Finding the Fourth Proportional to 402.02, 554.19 and 246.50

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Solution

The fourth proportional to 402.02, 554.19 and 246.50 is: 339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.02 : 554.19 = 246.50 : x
  2. Step 2: Convert to fraction form
    402.02/554.19 = 246.50/x
  3. Step 3: Cross multiply
    402.02x = 554.19 × 246.50
  4. Step 4: Simplify right side
    402.02x = 136,607.84
  5. Step 5: Solve for x
    x = 136,607.84/402.02
  6. Step 6: Final answer
    x = 339.80

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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.