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Finding the Fourth Proportional to 472.67, 709.12 and 375.54

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Solution

The fourth proportional to 472.67, 709.12 and 375.54 is: 563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.67 : 709.12 = 375.54 : x
  2. Step 2: Convert to fraction form
    472.67/709.12 = 375.54/x
  3. Step 3: Cross multiply
    472.67x = 709.12 × 375.54
  4. Step 4: Simplify right side
    472.67x = 266,300.74
  5. Step 5: Solve for x
    x = 266,300.74/472.67
  6. Step 6: Final answer
    x = 563.40

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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.