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Finding the Fourth Proportional to 483.60, 663.02 and 474.84

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Solution

The fourth proportional to 483.60, 663.02 and 474.84 is: 651.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.60 : 663.02 = 474.84 : x
  2. Step 2: Convert to fraction form
    483.60/663.02 = 474.84/x
  3. Step 3: Cross multiply
    483.60x = 663.02 × 474.84
  4. Step 4: Simplify right side
    483.60x = 314,825.10
  5. Step 5: Solve for x
    x = 314,825.10/483.60
  6. Step 6: Final answer
    x = 651.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.