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Finding the Fourth Proportional to 473.67, 710.67 and 380.46

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Solution

The fourth proportional to 473.67, 710.67 and 380.46 is: 570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.67 : 710.67 = 380.46 : x
  2. Step 2: Convert to fraction form
    473.67/710.67 = 380.46/x
  3. Step 3: Cross multiply
    473.67x = 710.67 × 380.46
  4. Step 4: Simplify right side
    473.67x = 270,381.51
  5. Step 5: Solve for x
    x = 270,381.51/473.67
  6. Step 6: Final answer
    x = 570.82

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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.