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Finding the Fourth Proportional to 614.69, 848.34 and 352.70

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Solution

The fourth proportional to 614.69, 848.34 and 352.70 is: 486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.69 : 848.34 = 352.70 : x
  2. Step 2: Convert to fraction form
    614.69/848.34 = 352.70/x
  3. Step 3: Cross multiply
    614.69x = 848.34 × 352.70
  4. Step 4: Simplify right side
    614.69x = 299,205.28
  5. Step 5: Solve for x
    x = 299,205.28/614.69
  6. Step 6: Final answer
    x = 486.76

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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.