Home / 407,042.28-561,752.82-225,812.57

Finding the Fourth Proportional to 407,042.28, 561,752.82 and 225,812.57

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Solution

The fourth proportional to 407,042.28, 561,752.82 and 225,812.57 is: 311,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,042.28 : 561,752.82 = 225,812.57 : x
  2. Step 2: Convert to fraction form
    407,042.28/561,752.82 = 225,812.57/x
  3. Step 3: Cross multiply
    407,042.28x = 561,752.82 × 225,812.57
  4. Step 4: Simplify right side
    407,042.28x = 126,850,845,180.18
  5. Step 5: Solve for x
    x = 126,850,845,180.18/407,042.28
  6. Step 6: Final answer
    x = 311,640.46

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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.