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Finding the Fourth Proportional to 307.51, 460.18 and 214.51

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Solution

The fourth proportional to 307.51, 460.18 and 214.51 is: 321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.51 : 460.18 = 214.51 : x
  2. Step 2: Convert to fraction form
    307.51/460.18 = 214.51/x
  3. Step 3: Cross multiply
    307.51x = 460.18 × 214.51
  4. Step 4: Simplify right side
    307.51x = 98,713.21
  5. Step 5: Solve for x
    x = 98,713.21/307.51
  6. Step 6: Final answer
    x = 321.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.