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Finding the Fourth Proportional to 700.21, 966.34 and 385.53

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Solution

The fourth proportional to 700.21, 966.34 and 385.53 is: 532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.21 : 966.34 = 385.53 : x
  2. Step 2: Convert to fraction form
    700.21/966.34 = 385.53/x
  3. Step 3: Cross multiply
    700.21x = 966.34 × 385.53
  4. Step 4: Simplify right side
    700.21x = 372,554.02
  5. Step 5: Solve for x
    x = 372,554.02/700.21
  6. Step 6: Final answer
    x = 532.06

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1.5x scale

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.