Home / 225,283.48-310,890.38-121,917.47

Finding the Fourth Proportional to 225,283.48, 310,890.38 and 121,917.47

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Solution

The fourth proportional to 225,283.48, 310,890.38 and 121,917.47 is: 168,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,283.48 : 310,890.38 = 121,917.47 : x
  2. Step 2: Convert to fraction form
    225,283.48/310,890.38 = 121,917.47/x
  3. Step 3: Cross multiply
    225,283.48x = 310,890.38 × 121,917.47
  4. Step 4: Simplify right side
    225,283.48x = 37,902,966,412.90
  5. Step 5: Solve for x
    x = 37,902,966,412.90/225,283.48
  6. Step 6: Final answer
    x = 168,245.66

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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.