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Finding the Fourth Proportional to 433.42, 647.73 and 352.35

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Solution

The fourth proportional to 433.42, 647.73 and 352.35 is: 526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.42 : 647.73 = 352.35 : x
  2. Step 2: Convert to fraction form
    433.42/647.73 = 352.35/x
  3. Step 3: Cross multiply
    433.42x = 647.73 × 352.35
  4. Step 4: Simplify right side
    433.42x = 228,227.67
  5. Step 5: Solve for x
    x = 228,227.67/433.42
  6. Step 6: Final answer
    x = 526.58

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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.