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Finding the Fourth Proportional to 315,730.46, 435,707.88 and 179,757.38

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Solution

The fourth proportional to 315,730.46, 435,707.88 and 179,757.38 is: 248,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,730.46 : 435,707.88 = 179,757.38 : x
  2. Step 2: Convert to fraction form
    315,730.46/435,707.88 = 179,757.38/x
  3. Step 3: Cross multiply
    315,730.46x = 435,707.88 × 179,757.38
  4. Step 4: Simplify right side
    315,730.46x = 78,321,706,954.15
  5. Step 5: Solve for x
    x = 78,321,706,954.15/315,730.46
  6. Step 6: Final answer
    x = 248,065.10

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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.