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Finding the Fourth Proportional to 340.03, 468.85 and 316.18

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Solution

The fourth proportional to 340.03, 468.85 and 316.18 is: 435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.03 : 468.85 = 316.18 : x
  2. Step 2: Convert to fraction form
    340.03/468.85 = 316.18/x
  3. Step 3: Cross multiply
    340.03x = 468.85 × 316.18
  4. Step 4: Simplify right side
    340.03x = 148,240.99
  5. Step 5: Solve for x
    x = 148,240.99/340.03
  6. Step 6: Final answer
    x = 435.96

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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.