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Finding the Fourth Proportional to 966.18, 1,333.31 and 534.99

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Solution

The fourth proportional to 966.18, 1,333.31 and 534.99 is: 738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.18 : 1,333.31 = 534.99 : x
  2. Step 2: Convert to fraction form
    966.18/1,333.31 = 534.99/x
  3. Step 3: Cross multiply
    966.18x = 1,333.31 × 534.99
  4. Step 4: Simplify right side
    966.18x = 713,307.52
  5. Step 5: Solve for x
    x = 713,307.52/966.18
  6. Step 6: Final answer
    x = 738.28

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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.