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Finding the Fourth Proportional to 505.03, 752.59 and 488.51

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Solution

The fourth proportional to 505.03, 752.59 and 488.51 is: 727.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.03 : 752.59 = 488.51 : x
  2. Step 2: Convert to fraction form
    505.03/752.59 = 488.51/x
  3. Step 3: Cross multiply
    505.03x = 752.59 × 488.51
  4. Step 4: Simplify right side
    505.03x = 367,649.58
  5. Step 5: Solve for x
    x = 367,649.58/505.03
  6. Step 6: Final answer
    x = 727.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.