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Finding the Fourth Proportional to 358.33, 534.62 and 319.35

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Solution

The fourth proportional to 358.33, 534.62 and 319.35 is: 476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.33 : 534.62 = 319.35 : x
  2. Step 2: Convert to fraction form
    358.33/534.62 = 319.35/x
  3. Step 3: Cross multiply
    358.33x = 534.62 × 319.35
  4. Step 4: Simplify right side
    358.33x = 170,730.90
  5. Step 5: Solve for x
    x = 170,730.90/358.33
  6. Step 6: Final answer
    x = 476.46

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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.