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Finding the Fourth Proportional to 336.15, 501.39 and 325.90

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Solution

The fourth proportional to 336.15, 501.39 and 325.90 is: 486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.15 : 501.39 = 325.90 : x
  2. Step 2: Convert to fraction form
    336.15/501.39 = 325.90/x
  3. Step 3: Cross multiply
    336.15x = 501.39 × 325.90
  4. Step 4: Simplify right side
    336.15x = 163,403.00
  5. Step 5: Solve for x
    x = 163,403.00/336.15
  6. Step 6: Final answer
    x = 486.10

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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.