Home / 312,318.20-430,998.60-169,078.24

Finding the Fourth Proportional to 312,318.20, 430,998.60 and 169,078.24

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Solution

The fourth proportional to 312,318.20, 430,998.60 and 169,078.24 is: 233,327.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,318.20 : 430,998.60 = 169,078.24 : x
  2. Step 2: Convert to fraction form
    312,318.20/430,998.60 = 169,078.24/x
  3. Step 3: Cross multiply
    312,318.20x = 430,998.60 × 169,078.24
  4. Step 4: Simplify right side
    312,318.20x = 72,872,484,730.46
  5. Step 5: Solve for x
    x = 72,872,484,730.46/312,318.20
  6. Step 6: Final answer
    x = 233,327.69

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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.