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Finding the Fourth Proportional to 554.07, 764.30 and 332.90

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Solution

The fourth proportional to 554.07, 764.30 and 332.90 is: 459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.07 : 764.30 = 332.90 : x
  2. Step 2: Convert to fraction form
    554.07/764.30 = 332.90/x
  3. Step 3: Cross multiply
    554.07x = 764.30 × 332.90
  4. Step 4: Simplify right side
    554.07x = 254,429.98
  5. Step 5: Solve for x
    x = 254,429.98/554.07
  6. Step 6: Final answer
    x = 459.20

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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.