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Finding the Fourth Proportional to 567.00, 782.48 and 330.91

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Solution

The fourth proportional to 567.00, 782.48 and 330.91 is: 456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.00 : 782.48 = 330.91 : x
  2. Step 2: Convert to fraction form
    567.00/782.48 = 330.91/x
  3. Step 3: Cross multiply
    567.00x = 782.48 × 330.91
  4. Step 4: Simplify right side
    567.00x = 258,928.09
  5. Step 5: Solve for x
    x = 258,928.09/567.00
  6. Step 6: Final answer
    x = 456.67

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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.