Home / 305,401.56-457,880.85-205,313.46

Finding the Fourth Proportional to 305,401.56, 457,880.85 and 205,313.46

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Solution

The fourth proportional to 305,401.56, 457,880.85 and 205,313.46 is: 307,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,401.56 : 457,880.85 = 205,313.46 : x
  2. Step 2: Convert to fraction form
    305,401.56/457,880.85 = 205,313.46/x
  3. Step 3: Cross multiply
    305,401.56x = 457,880.85 × 205,313.46
  4. Step 4: Simplify right side
    305,401.56x = 94,009,101,581.24
  5. Step 5: Solve for x
    x = 94,009,101,581.24/305,401.56
  6. Step 6: Final answer
    x = 307,821.29

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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.