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Finding the Fourth Proportional to 651.36, 975.48 and 514.08

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Solution

The fourth proportional to 651.36, 975.48 and 514.08 is: 769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.36 : 975.48 = 514.08 : x
  2. Step 2: Convert to fraction form
    651.36/975.48 = 514.08/x
  3. Step 3: Cross multiply
    651.36x = 975.48 × 514.08
  4. Step 4: Simplify right side
    651.36x = 501,474.76
  5. Step 5: Solve for x
    x = 501,474.76/651.36
  6. Step 6: Final answer
    x = 769.89

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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.