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Finding the Fourth Proportional to 472.96, 709.12 and 184.32

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Solution

The fourth proportional to 472.96, 709.12 and 184.32 is: 276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.96 : 709.12 = 184.32 : x
  2. Step 2: Convert to fraction form
    472.96/709.12 = 184.32/x
  3. Step 3: Cross multiply
    472.96x = 709.12 × 184.32
  4. Step 4: Simplify right side
    472.96x = 130,705.00
  5. Step 5: Solve for x
    x = 130,705.00/472.96
  6. Step 6: Final answer
    x = 276.36

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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.