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Finding the Fourth Proportional to 358.79, 540.39 and 341.51

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Solution

The fourth proportional to 358.79, 540.39 and 341.51 is: 514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.79 : 540.39 = 341.51 : x
  2. Step 2: Convert to fraction form
    358.79/540.39 = 341.51/x
  3. Step 3: Cross multiply
    358.79x = 540.39 × 341.51
  4. Step 4: Simplify right side
    358.79x = 184,547.17
  5. Step 5: Solve for x
    x = 184,547.17/358.79
  6. Step 6: Final answer
    x = 514.37

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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.