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Finding the Fourth Proportional to 483.39, 666.77 and 296.81

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Solution

The fourth proportional to 483.39, 666.77 and 296.81 is: 409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.39 : 666.77 = 296.81 : x
  2. Step 2: Convert to fraction form
    483.39/666.77 = 296.81/x
  3. Step 3: Cross multiply
    483.39x = 666.77 × 296.81
  4. Step 4: Simplify right side
    483.39x = 197,902.52
  5. Step 5: Solve for x
    x = 197,902.52/483.39
  6. Step 6: Final answer
    x = 409.41

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Find fourth proportional to 241.69, 333.38 and 148.41
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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.