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Finding the Fourth Proportional to 288,568.47, 398,479.80 and 179,858.34

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Solution

The fourth proportional to 288,568.47, 398,479.80 and 179,858.34 is: 248,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,568.47 : 398,479.80 = 179,858.34 : x
  2. Step 2: Convert to fraction form
    288,568.47/398,479.80 = 179,858.34/x
  3. Step 3: Cross multiply
    288,568.47x = 398,479.80 × 179,858.34
  4. Step 4: Simplify right side
    288,568.47x = 71,669,913,359.13
  5. Step 5: Solve for x
    x = 71,669,913,359.13/288,568.47
  6. Step 6: Final answer
    x = 248,363.64

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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.