Home / 400,914.93-553,262.70-219,633.36

Finding the Fourth Proportional to 400,914.93, 553,262.70 and 219,633.36

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Solution

The fourth proportional to 400,914.93, 553,262.70 and 219,633.36 is: 303,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,914.93 : 553,262.70 = 219,633.36 : x
  2. Step 2: Convert to fraction form
    400,914.93/553,262.70 = 219,633.36/x
  3. Step 3: Cross multiply
    400,914.93x = 553,262.70 × 219,633.36
  4. Step 4: Simplify right side
    400,914.93x = 121,514,945,763.67
  5. Step 5: Solve for x
    x = 121,514,945,763.67/400,914.93
  6. Step 6: Final answer
    x = 303,094.09

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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.