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Finding the Fourth Proportional to 615.34, 921.93 and 602.38

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Solution

The fourth proportional to 615.34, 921.93 and 602.38 is: 902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.34 : 921.93 = 602.38 : x
  2. Step 2: Convert to fraction form
    615.34/921.93 = 602.38/x
  3. Step 3: Cross multiply
    615.34x = 921.93 × 602.38
  4. Step 4: Simplify right side
    615.34x = 555,352.19
  5. Step 5: Solve for x
    x = 555,352.19/615.34
  6. Step 6: Final answer
    x = 902.51

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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.