Home / 312,200.96-430,837.16-176,236.09

Finding the Fourth Proportional to 312,200.96, 430,837.16 and 176,236.09

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Solution

The fourth proportional to 312,200.96, 430,837.16 and 176,236.09 is: 243,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,200.96 : 430,837.16 = 176,236.09 : x
  2. Step 2: Convert to fraction form
    312,200.96/430,837.16 = 176,236.09/x
  3. Step 3: Cross multiply
    312,200.96x = 430,837.16 × 176,236.09
  4. Step 4: Simplify right side
    312,200.96x = 75,929,054,069.45
  5. Step 5: Solve for x
    x = 75,929,054,069.45/312,200.96
  6. Step 6: Final answer
    x = 243,205.70

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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.