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Finding the Fourth Proportional to 495.68, 683.68 and 348.48

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Solution

The fourth proportional to 495.68, 683.68 and 348.48 is: 480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.68 : 683.68 = 348.48 : x
  2. Step 2: Convert to fraction form
    495.68/683.68 = 348.48/x
  3. Step 3: Cross multiply
    495.68x = 683.68 × 348.48
  4. Step 4: Simplify right side
    495.68x = 238,248.81
  5. Step 5: Solve for x
    x = 238,248.81/495.68
  6. Step 6: Final answer
    x = 480.65

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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.