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Finding the Fourth Proportional to 615.23, 852.68 and 603.71

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Solution

The fourth proportional to 615.23, 852.68 and 603.71 is: 836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.23 : 852.68 = 603.71 : x
  2. Step 2: Convert to fraction form
    615.23/852.68 = 603.71/x
  3. Step 3: Cross multiply
    615.23x = 852.68 × 603.71
  4. Step 4: Simplify right side
    615.23x = 514,772.95
  5. Step 5: Solve for x
    x = 514,772.95/615.23
  6. Step 6: Final answer
    x = 836.72

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.