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Finding the Fourth Proportional to 312,200.73, 430,837.53 and 168,960.90

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Solution

The fourth proportional to 312,200.73, 430,837.53 and 168,960.90 is: 233,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,200.73 : 430,837.53 = 168,960.90 : x
  2. Step 2: Convert to fraction form
    312,200.73/430,837.53 = 168,960.90/x
  3. Step 3: Cross multiply
    312,200.73x = 430,837.53 × 168,960.90
  4. Step 4: Simplify right side
    312,200.73x = 72,794,696,822.58
  5. Step 5: Solve for x
    x = 72,794,696,822.58/312,200.73
  6. Step 6: Final answer
    x = 233,166.32

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1.5x scale

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.