Home / 305,868.40-458,578.92-205,779.76

Finding the Fourth Proportional to 305,868.40, 458,578.92 and 205,779.76

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Solution

The fourth proportional to 305,868.40, 458,578.92 and 205,779.76 is: 308,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,868.40 : 458,578.92 = 205,779.76 : x
  2. Step 2: Convert to fraction form
    305,868.40/458,578.92 = 205,779.76/x
  3. Step 3: Cross multiply
    305,868.40x = 458,578.92 × 205,779.76
  4. Step 4: Simplify right side
    305,868.40x = 94,366,260,098.66
  5. Step 5: Solve for x
    x = 94,366,260,098.66/305,868.40
  6. Step 6: Final answer
    x = 308,519.15

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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.