Home / 312,199.61-430,836.21-168,961.23

Finding the Fourth Proportional to 312,199.61, 430,836.21 and 168,961.23

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Solution

The fourth proportional to 312,199.61, 430,836.21 and 168,961.23 is: 233,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,199.61 : 430,836.21 = 168,961.23 : x
  2. Step 2: Convert to fraction form
    312,199.61/430,836.21 = 168,961.23/x
  3. Step 3: Cross multiply
    312,199.61x = 430,836.21 × 168,961.23
  4. Step 4: Simplify right side
    312,199.61x = 72,794,615,970.14
  5. Step 5: Solve for x
    x = 72,794,615,970.14/312,199.61
  6. Step 6: Final answer
    x = 233,166.91

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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.