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Finding the Fourth Proportional to 315,449.46, 435,314.46 and 179,480.43

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Solution

The fourth proportional to 315,449.46, 435,314.46 and 179,480.43 is: 247,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,449.46 : 435,314.46 = 179,480.43 : x
  2. Step 2: Convert to fraction form
    315,449.46/435,314.46 = 179,480.43/x
  3. Step 3: Cross multiply
    315,449.46x = 435,314.46 × 179,480.43
  4. Step 4: Simplify right side
    315,449.46x = 78,130,426,466.02
  5. Step 5: Solve for x
    x = 78,130,426,466.02/315,449.46
  6. Step 6: Final answer
    x = 247,679.70

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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.