Home / 312,917.36-469,415.40-152,998.64

Finding the Fourth Proportional to 312,917.36, 469,415.40 and 152,998.64

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Solution

The fourth proportional to 312,917.36, 469,415.40 and 152,998.64 is: 229,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,917.36 : 469,415.40 = 152,998.64 : x
  2. Step 2: Convert to fraction form
    312,917.36/469,415.40 = 152,998.64/x
  3. Step 3: Cross multiply
    312,917.36x = 469,415.40 × 152,998.64
  4. Step 4: Simplify right side
    312,917.36x = 71,819,917,795.06
  5. Step 5: Solve for x
    x = 71,819,917,795.06/312,917.36
  6. Step 6: Final answer
    x = 229,517.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.