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Finding the Fourth Proportional to 702.08, 968.34 and 515.50

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Solution

The fourth proportional to 702.08, 968.34 and 515.50 is: 711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.08 : 968.34 = 515.50 : x
  2. Step 2: Convert to fraction form
    702.08/968.34 = 515.50/x
  3. Step 3: Cross multiply
    702.08x = 968.34 × 515.50
  4. Step 4: Simplify right side
    702.08x = 499,179.27
  5. Step 5: Solve for x
    x = 499,179.27/702.08
  6. Step 6: Final answer
    x = 711.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.