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Finding the Fourth Proportional to 225,141.01, 310,664.15 and 128,357.35

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Solution

The fourth proportional to 225,141.01, 310,664.15 and 128,357.35 is: 177,115.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,141.01 : 310,664.15 = 128,357.35 : x
  2. Step 2: Convert to fraction form
    225,141.01/310,664.15 = 128,357.35/x
  3. Step 3: Cross multiply
    225,141.01x = 310,664.15 × 128,357.35
  4. Step 4: Simplify right side
    225,141.01x = 39,876,027,034.00
  5. Step 5: Solve for x
    x = 39,876,027,034.00/225,141.01
  6. Step 6: Final answer
    x = 177,115.79

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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.