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Finding the Fourth Proportional to 315,221.08, 435,030.84 and 179,297.54

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Solution

The fourth proportional to 315,221.08, 435,030.84 and 179,297.54 is: 247,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,221.08 : 435,030.84 = 179,297.54 : x
  2. Step 2: Convert to fraction form
    315,221.08/435,030.84 = 179,297.54/x
  3. Step 3: Cross multiply
    315,221.08x = 435,030.84 × 179,297.54
  4. Step 4: Simplify right side
    315,221.08x = 77,999,959,436.13
  5. Step 5: Solve for x
    x = 77,999,959,436.13/315,221.08
  6. Step 6: Final answer
    x = 247,445.25

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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.