Home / 252,918.90-379,403.85-82,133.46

Finding the Fourth Proportional to 252,918.90, 379,403.85 and 82,133.46

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Solution

The fourth proportional to 252,918.90, 379,403.85 and 82,133.46 is: 123,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,918.90 : 379,403.85 = 82,133.46 : x
  2. Step 2: Convert to fraction form
    252,918.90/379,403.85 = 82,133.46/x
  3. Step 3: Cross multiply
    252,918.90x = 379,403.85 × 82,133.46
  4. Step 4: Simplify right side
    252,918.90x = 31,161,750,937.82
  5. Step 5: Solve for x
    x = 31,161,750,937.82/252,918.90
  6. Step 6: Final answer
    x = 123,208.47

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1.5x scale

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.