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Finding the Fourth Proportional to 358.08, 534.55 and 342.32

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Solution

The fourth proportional to 358.08, 534.55 and 342.32 is: 511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.08 : 534.55 = 342.32 : x
  2. Step 2: Convert to fraction form
    358.08/534.55 = 342.32/x
  3. Step 3: Cross multiply
    358.08x = 534.55 × 342.32
  4. Step 4: Simplify right side
    358.08x = 182,987.16
  5. Step 5: Solve for x
    x = 182,987.16/358.08
  6. Step 6: Final answer
    x = 511.02

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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.