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Finding the Fourth Proportional to 403.12, 601.45 and 359.27

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Solution

The fourth proportional to 403.12, 601.45 and 359.27 is: 536.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.12 : 601.45 = 359.27 : x
  2. Step 2: Convert to fraction form
    403.12/601.45 = 359.27/x
  3. Step 3: Cross multiply
    403.12x = 601.45 × 359.27
  4. Step 4: Simplify right side
    403.12x = 216,081.29
  5. Step 5: Solve for x
    x = 216,081.29/403.12
  6. Step 6: Final answer
    x = 536.02

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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.