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Finding the Fourth Proportional to 581.88, 803 and 333.20

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Solution

The fourth proportional to 581.88, 803 and 333.20 is: 459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.88 : 803 = 333.20 : x
  2. Step 2: Convert to fraction form
    581.88/803 = 333.20/x
  3. Step 3: Cross multiply
    581.88x = 803 × 333.20
  4. Step 4: Simplify right side
    581.88x = 267,559.60
  5. Step 5: Solve for x
    x = 267,559.60/581.88
  6. Step 6: Final answer
    x = 459.82

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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.