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Finding the Fourth Proportional to 342.08, 471.60 and 264.32

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Solution

The fourth proportional to 342.08, 471.60 and 264.32 is: 364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.08 : 471.60 = 264.32 : x
  2. Step 2: Convert to fraction form
    342.08/471.60 = 264.32/x
  3. Step 3: Cross multiply
    342.08x = 471.60 × 264.32
  4. Step 4: Simplify right side
    342.08x = 124,653.31
  5. Step 5: Solve for x
    x = 124,653.31/342.08
  6. Step 6: Final answer
    x = 364.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.