Home / 305,403.56-457,883.84-205,315.46

Finding the Fourth Proportional to 305,403.56, 457,883.84 and 205,315.46

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Solution

The fourth proportional to 305,403.56, 457,883.84 and 205,315.46 is: 307,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,403.56 : 457,883.84 = 205,315.46 : x
  2. Step 2: Convert to fraction form
    305,403.56/457,883.84 = 205,315.46/x
  3. Step 3: Cross multiply
    305,403.56x = 457,883.84 × 205,315.46
  4. Step 4: Simplify right side
    305,403.56x = 94,010,631,236.17
  5. Step 5: Solve for x
    x = 94,010,631,236.17/305,403.56
  6. Step 6: Final answer
    x = 307,824.28

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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.