Home / 407,030.10-561,736.05-225,800.43

Finding the Fourth Proportional to 407,030.10, 561,736.05 and 225,800.43

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Solution

The fourth proportional to 407,030.10, 561,736.05 and 225,800.43 is: 311,623.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,030.10 : 561,736.05 = 225,800.43 : x
  2. Step 2: Convert to fraction form
    407,030.10/561,736.05 = 225,800.43/x
  3. Step 3: Cross multiply
    407,030.10x = 561,736.05 × 225,800.43
  4. Step 4: Simplify right side
    407,030.10x = 126,840,241,636.50
  5. Step 5: Solve for x
    x = 126,840,241,636.50/407,030.10
  6. Step 6: Final answer
    x = 311,623.74

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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.