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Finding the Fourth Proportional to 315,448.63, 435,303.92 and 179,469.88

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Solution

The fourth proportional to 315,448.63, 435,303.92 and 179,469.88 is: 247,659.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,448.63 : 435,303.92 = 179,469.88 : x
  2. Step 2: Convert to fraction form
    315,448.63/435,303.92 = 179,469.88/x
  3. Step 3: Cross multiply
    315,448.63x = 435,303.92 × 179,469.88
  4. Step 4: Simplify right side
    315,448.63x = 78,123,941,646.34
  5. Step 5: Solve for x
    x = 78,123,941,646.34/315,448.63
  6. Step 6: Final answer
    x = 247,659.79

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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.