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Finding the Fourth Proportional to 225,094.87, 310,640.87 and 129,632.32

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Solution

The fourth proportional to 225,094.87, 310,640.87 and 129,632.32 is: 178,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,094.87 : 310,640.87 = 129,632.32 : x
  2. Step 2: Convert to fraction form
    225,094.87/310,640.87 = 129,632.32/x
  3. Step 3: Cross multiply
    225,094.87x = 310,640.87 × 129,632.32
  4. Step 4: Simplify right side
    225,094.87x = 40,269,096,664.92
  5. Step 5: Solve for x
    x = 40,269,096,664.92/225,094.87
  6. Step 6: Final answer
    x = 178,898.33

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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.