Home / 305,904.40-458,632.92-205,815.76

Finding the Fourth Proportional to 305,904.40, 458,632.92 and 205,815.76

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Solution

The fourth proportional to 305,904.40, 458,632.92 and 205,815.76 is: 308,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,904.40 : 458,632.92 = 205,815.76 : x
  2. Step 2: Convert to fraction form
    305,904.40/458,632.92 = 205,815.76/x
  3. Step 3: Cross multiply
    305,904.40x = 458,632.92 × 205,815.76
  4. Step 4: Simplify right side
    305,904.40x = 94,393,882,990.82
  5. Step 5: Solve for x
    x = 94,393,882,990.82/305,904.40
  6. Step 6: Final answer
    x = 308,573.15

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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.