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Finding the Fourth Proportional to 602.32, 903.34 and 345.82

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Solution

The fourth proportional to 602.32, 903.34 and 345.82 is: 518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.32 : 903.34 = 345.82 : x
  2. Step 2: Convert to fraction form
    602.32/903.34 = 345.82/x
  3. Step 3: Cross multiply
    602.32x = 903.34 × 345.82
  4. Step 4: Simplify right side
    602.32x = 312,393.04
  5. Step 5: Solve for x
    x = 312,393.04/602.32
  6. Step 6: Final answer
    x = 518.65

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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.