Home / 438,917.70-605,699.16-245,329.92

Finding the Fourth Proportional to 438,917.70, 605,699.16 and 245,329.92

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Solution

The fourth proportional to 438,917.70, 605,699.16 and 245,329.92 is: 338,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,917.70 : 605,699.16 = 245,329.92 : x
  2. Step 2: Convert to fraction form
    438,917.70/605,699.16 = 245,329.92/x
  3. Step 3: Cross multiply
    438,917.70x = 605,699.16 × 245,329.92
  4. Step 4: Simplify right side
    438,917.70x = 148,596,126,466.87
  5. Step 5: Solve for x
    x = 148,596,126,466.87/438,917.70
  6. Step 6: Final answer
    x = 338,551.23

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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.