Home / 407,110.80-561,821.90-225,816.82

Finding the Fourth Proportional to 407,110.80, 561,821.90 and 225,816.82

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Solution

The fourth proportional to 407,110.80, 561,821.90 and 225,816.82 is: 311,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,110.80 : 561,821.90 = 225,816.82 : x
  2. Step 2: Convert to fraction form
    407,110.80/561,821.90 = 225,816.82/x
  3. Step 3: Cross multiply
    407,110.80x = 561,821.90 × 225,816.82
  4. Step 4: Simplify right side
    407,110.80x = 126,868,834,864.36
  5. Step 5: Solve for x
    x = 126,868,834,864.36/407,110.80
  6. Step 6: Final answer
    x = 311,632.20

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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.