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Finding the Fourth Proportional to 697.99, 1,047.08 and 235.64

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Solution

The fourth proportional to 697.99, 1,047.08 and 235.64 is: 353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.99 : 1,047.08 = 235.64 : x
  2. Step 2: Convert to fraction form
    697.99/1,047.08 = 235.64/x
  3. Step 3: Cross multiply
    697.99x = 1,047.08 × 235.64
  4. Step 4: Simplify right side
    697.99x = 246,738.41
  5. Step 5: Solve for x
    x = 246,738.41/697.99
  6. Step 6: Final answer
    x = 353.50

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Double scale
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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.