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Finding the Fourth Proportional to 583.59, 805.31 and 347.46

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Solution

The fourth proportional to 583.59, 805.31 and 347.46 is: 479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.59 : 805.31 = 347.46 : x
  2. Step 2: Convert to fraction form
    583.59/805.31 = 347.46/x
  3. Step 3: Cross multiply
    583.59x = 805.31 × 347.46
  4. Step 4: Simplify right side
    583.59x = 279,811.28
  5. Step 5: Solve for x
    x = 279,811.28/583.59
  6. Step 6: Final answer
    x = 479.47

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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.