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Finding the Fourth Proportional to 473.88, 710.68 and 230.20

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Solution

The fourth proportional to 473.88, 710.68 and 230.20 is: 345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.88 : 710.68 = 230.20 : x
  2. Step 2: Convert to fraction form
    473.88/710.68 = 230.20/x
  3. Step 3: Cross multiply
    473.88x = 710.68 × 230.20
  4. Step 4: Simplify right side
    473.88x = 163,598.54
  5. Step 5: Solve for x
    x = 163,598.54/473.88
  6. Step 6: Final answer
    x = 345.23

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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.