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Finding the Fourth Proportional to 473.30, 653.19 and 276.77

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Solution

The fourth proportional to 473.30, 653.19 and 276.77 is: 381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.30 : 653.19 = 276.77 : x
  2. Step 2: Convert to fraction form
    473.30/653.19 = 276.77/x
  3. Step 3: Cross multiply
    473.30x = 653.19 × 276.77
  4. Step 4: Simplify right side
    473.30x = 180,783.40
  5. Step 5: Solve for x
    x = 180,783.40/473.30
  6. Step 6: Final answer
    x = 381.96

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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.