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Finding the Fourth Proportional to 848.51, 1,169.86 and 549.25

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Solution

The fourth proportional to 848.51, 1,169.86 and 549.25 is: 757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.51 : 1,169.86 = 549.25 : x
  2. Step 2: Convert to fraction form
    848.51/1,169.86 = 549.25/x
  3. Step 3: Cross multiply
    848.51x = 1,169.86 × 549.25
  4. Step 4: Simplify right side
    848.51x = 642,545.61
  5. Step 5: Solve for x
    x = 642,545.61/848.51
  6. Step 6: Final answer
    x = 757.26

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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.