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Finding the Fourth Proportional to 354.71, 528.43 and 341.65

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Solution

The fourth proportional to 354.71, 528.43 and 341.65 is: 508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.71 : 528.43 = 341.65 : x
  2. Step 2: Convert to fraction form
    354.71/528.43 = 341.65/x
  3. Step 3: Cross multiply
    354.71x = 528.43 × 341.65
  4. Step 4: Simplify right side
    354.71x = 180,533.76
  5. Step 5: Solve for x
    x = 180,533.76/354.71
  6. Step 6: Final answer
    x = 508.97

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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.