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Finding the Fourth Proportional to 403.44, 607.72 and 332.16

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Solution

The fourth proportional to 403.44, 607.72 and 332.16 is: 500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.44 : 607.72 = 332.16 : x
  2. Step 2: Convert to fraction form
    403.44/607.72 = 332.16/x
  3. Step 3: Cross multiply
    403.44x = 607.72 × 332.16
  4. Step 4: Simplify right side
    403.44x = 201,860.28
  5. Step 5: Solve for x
    x = 201,860.28/403.44
  6. Step 6: Final answer
    x = 500.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.