Home / 399,272.84-550,973.13-217,948.33

Finding the Fourth Proportional to 399,272.84, 550,973.13 and 217,948.33

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Solution

The fourth proportional to 399,272.84, 550,973.13 and 217,948.33 is: 300,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,272.84 : 550,973.13 = 217,948.33 : x
  2. Step 2: Convert to fraction form
    399,272.84/550,973.13 = 217,948.33/x
  3. Step 3: Cross multiply
    399,272.84x = 550,973.13 × 217,948.33
  4. Step 4: Simplify right side
    399,272.84x = 120,083,675,277.31
  5. Step 5: Solve for x
    x = 120,083,675,277.31/399,272.84
  6. Step 6: Final answer
    x = 300,755.93

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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.