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Finding the Fourth Proportional to 572.68, 790.16 and 336.54

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Solution

The fourth proportional to 572.68, 790.16 and 336.54 is: 464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.68 : 790.16 = 336.54 : x
  2. Step 2: Convert to fraction form
    572.68/790.16 = 336.54/x
  3. Step 3: Cross multiply
    572.68x = 790.16 × 336.54
  4. Step 4: Simplify right side
    572.68x = 265,921.73
  5. Step 5: Solve for x
    x = 265,921.73/572.68
  6. Step 6: Final answer
    x = 464.35

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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.