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Finding the Fourth Proportional to 341.51, 514.89 and 318.02

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Solution

The fourth proportional to 341.51, 514.89 and 318.02 is: 479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.51 : 514.89 = 318.02 : x
  2. Step 2: Convert to fraction form
    341.51/514.89 = 318.02/x
  3. Step 3: Cross multiply
    341.51x = 514.89 × 318.02
  4. Step 4: Simplify right side
    341.51x = 163,742.74
  5. Step 5: Solve for x
    x = 163,742.74/341.51
  6. Step 6: Final answer
    x = 479.47

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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.