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Finding the Fourth Proportional to 848.08, 1,272.12 and 360.82

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Solution

The fourth proportional to 848.08, 1,272.12 and 360.82 is: 541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.08 : 1,272.12 = 360.82 : x
  2. Step 2: Convert to fraction form
    848.08/1,272.12 = 360.82/x
  3. Step 3: Cross multiply
    848.08x = 1,272.12 × 360.82
  4. Step 4: Simplify right side
    848.08x = 459,006.34
  5. Step 5: Solve for x
    x = 459,006.34/848.08
  6. Step 6: Final answer
    x = 541.23

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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.