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Finding the Fourth Proportional to 225,142.60, 310,695.06 and 134,537.80

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Solution

The fourth proportional to 225,142.60, 310,695.06 and 134,537.80 is: 185,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,142.60 : 310,695.06 = 134,537.80 : x
  2. Step 2: Convert to fraction form
    225,142.60/310,695.06 = 134,537.80/x
  3. Step 3: Cross multiply
    225,142.60x = 310,695.06 × 134,537.80
  4. Step 4: Simplify right side
    225,142.60x = 41,800,229,843.27
  5. Step 5: Solve for x
    x = 41,800,229,843.27/225,142.60
  6. Step 6: Final answer
    x = 185,661.13

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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.