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Finding the Fourth Proportional to 554.41, 763.50 and 552.74

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Solution

The fourth proportional to 554.41, 763.50 and 552.74 is: 761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.41 : 763.50 = 552.74 : x
  2. Step 2: Convert to fraction form
    554.41/763.50 = 552.74/x
  3. Step 3: Cross multiply
    554.41x = 763.50 × 552.74
  4. Step 4: Simplify right side
    554.41x = 422,013.17
  5. Step 5: Solve for x
    x = 422,013.17/554.41
  6. Step 6: Final answer
    x = 761.20

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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.