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Finding the Fourth Proportional to 583.74, 805.55 and 335.05

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Solution

The fourth proportional to 583.74, 805.55 and 335.05 is: 462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.74 : 805.55 = 335.05 : x
  2. Step 2: Convert to fraction form
    583.74/805.55 = 335.05/x
  3. Step 3: Cross multiply
    583.74x = 805.55 × 335.05
  4. Step 4: Simplify right side
    583.74x = 269,899.53
  5. Step 5: Solve for x
    x = 269,899.53/583.74
  6. Step 6: Final answer
    x = 462.36

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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.