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Finding the Fourth Proportional to 484.51, 729.61 and 348.51

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Solution

The fourth proportional to 484.51, 729.61 and 348.51 is: 524.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.51 : 729.61 = 348.51 : x
  2. Step 2: Convert to fraction form
    484.51/729.61 = 348.51/x
  3. Step 3: Cross multiply
    484.51x = 729.61 × 348.51
  4. Step 4: Simplify right side
    484.51x = 254,276.38
  5. Step 5: Solve for x
    x = 254,276.38/484.51
  6. Step 6: Final answer
    x = 524.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.