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Finding the Fourth Proportional to 614.26, 848.39 and 515.04

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Solution

The fourth proportional to 614.26, 848.39 and 515.04 is: 711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.26 : 848.39 = 515.04 : x
  2. Step 2: Convert to fraction form
    614.26/848.39 = 515.04/x
  3. Step 3: Cross multiply
    614.26x = 848.39 × 515.04
  4. Step 4: Simplify right side
    614.26x = 436,954.79
  5. Step 5: Solve for x
    x = 436,954.79/614.26
  6. Step 6: Final answer
    x = 711.35

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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.