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Finding the Fourth Proportional to 295.68, 407.68 and 243.84

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Solution

The fourth proportional to 295.68, 407.68 and 243.84 is: 336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.68 : 407.68 = 243.84 : x
  2. Step 2: Convert to fraction form
    295.68/407.68 = 243.84/x
  3. Step 3: Cross multiply
    295.68x = 407.68 × 243.84
  4. Step 4: Simplify right side
    295.68x = 99,408.69
  5. Step 5: Solve for x
    x = 99,408.69/295.68
  6. Step 6: Final answer
    x = 336.20

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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.