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Finding the Fourth Proportional to 455.52, 680.64 and 373.44

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Solution

The fourth proportional to 455.52, 680.64 and 373.44 is: 558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.52 : 680.64 = 373.44 : x
  2. Step 2: Convert to fraction form
    455.52/680.64 = 373.44/x
  3. Step 3: Cross multiply
    455.52x = 680.64 × 373.44
  4. Step 4: Simplify right side
    455.52x = 254,178.20
  5. Step 5: Solve for x
    x = 254,178.20/455.52
  6. Step 6: Final answer
    x = 558.00

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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.