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Finding the Fourth Proportional to 483.64, 723.67 and 288.75

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Solution

The fourth proportional to 483.64, 723.67 and 288.75 is: 432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.64 : 723.67 = 288.75 : x
  2. Step 2: Convert to fraction form
    483.64/723.67 = 288.75/x
  3. Step 3: Cross multiply
    483.64x = 723.67 × 288.75
  4. Step 4: Simplify right side
    483.64x = 208,959.71
  5. Step 5: Solve for x
    x = 208,959.71/483.64
  6. Step 6: Final answer
    x = 432.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.