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Finding the Fourth Proportional to 700.31, 1,050.69 and 330.27

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Solution

The fourth proportional to 700.31, 1,050.69 and 330.27 is: 495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.31 : 1,050.69 = 330.27 : x
  2. Step 2: Convert to fraction form
    700.31/1,050.69 = 330.27/x
  3. Step 3: Cross multiply
    700.31x = 1,050.69 × 330.27
  4. Step 4: Simplify right side
    700.31x = 347,011.39
  5. Step 5: Solve for x
    x = 347,011.39/700.31
  6. Step 6: Final answer
    x = 495.51

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1.5x scale

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.