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Finding the Fourth Proportional to 554.46, 760.18 and 545.96

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Solution

The fourth proportional to 554.46, 760.18 and 545.96 is: 748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.46 : 760.18 = 545.96 : x
  2. Step 2: Convert to fraction form
    554.46/760.18 = 545.96/x
  3. Step 3: Cross multiply
    554.46x = 760.18 × 545.96
  4. Step 4: Simplify right side
    554.46x = 415,027.87
  5. Step 5: Solve for x
    x = 415,027.87/554.46
  6. Step 6: Final answer
    x = 748.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.