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Finding the Fourth Proportional to 495.32, 684.35 and 467.98

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Solution

The fourth proportional to 495.32, 684.35 and 467.98 is: 646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.32 : 684.35 = 467.98 : x
  2. Step 2: Convert to fraction form
    495.32/684.35 = 467.98/x
  3. Step 3: Cross multiply
    495.32x = 684.35 × 467.98
  4. Step 4: Simplify right side
    495.32x = 320,259.82
  5. Step 5: Solve for x
    x = 320,259.82/495.32
  6. Step 6: Final answer
    x = 646.58

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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.