Home / 395,013.28-545,117.98-222,967.46

Finding the Fourth Proportional to 395,013.28, 545,117.98 and 222,967.46

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Solution

The fourth proportional to 395,013.28, 545,117.98 and 222,967.46 is: 307,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,013.28 : 545,117.98 = 222,967.46 : x
  2. Step 2: Convert to fraction form
    395,013.28/545,117.98 = 222,967.46/x
  3. Step 3: Cross multiply
    395,013.28x = 545,117.98 × 222,967.46
  4. Step 4: Simplify right side
    395,013.28x = 121,543,571,400.93
  5. Step 5: Solve for x
    x = 121,543,571,400.93/395,013.28
  6. Step 6: Final answer
    x = 307,694.90

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1.5x scale

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.