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Finding the Fourth Proportional to 471.07, 706.56 and 317.98

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Solution

The fourth proportional to 471.07, 706.56 and 317.98 is: 476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.07 : 706.56 = 317.98 : x
  2. Step 2: Convert to fraction form
    471.07/706.56 = 317.98/x
  3. Step 3: Cross multiply
    471.07x = 706.56 × 317.98
  4. Step 4: Simplify right side
    471.07x = 224,674.02
  5. Step 5: Solve for x
    x = 224,674.02/471.07
  6. Step 6: Final answer
    x = 476.94

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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.