Home / 205,274.10-307,847.15-80,653.30

Finding the Fourth Proportional to 205,274.10, 307,847.15 and 80,653.30

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Solution

The fourth proportional to 205,274.10, 307,847.15 and 80,653.30 is: 120,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,274.10 : 307,847.15 = 80,653.30 : x
  2. Step 2: Convert to fraction form
    205,274.10/307,847.15 = 80,653.30/x
  3. Step 3: Cross multiply
    205,274.10x = 307,847.15 × 80,653.30
  4. Step 4: Simplify right side
    205,274.10x = 24,828,888,543.10
  5. Step 5: Solve for x
    x = 24,828,888,543.10/205,274.10
  6. Step 6: Final answer
    x = 120,954.80

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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.