Home / 280,558.35-420,839.15-93,569.31

Finding the Fourth Proportional to 280,558.35, 420,839.15 and 93,569.31

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Solution

The fourth proportional to 280,558.35, 420,839.15 and 93,569.31 is: 140,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,558.35 : 420,839.15 = 93,569.31 : x
  2. Step 2: Convert to fraction form
    280,558.35/420,839.15 = 93,569.31/x
  3. Step 3: Cross multiply
    280,558.35x = 420,839.15 × 93,569.31
  4. Step 4: Simplify right side
    280,558.35x = 39,377,628,418.64
  5. Step 5: Solve for x
    x = 39,377,628,418.64/280,558.35
  6. Step 6: Final answer
    x = 140,354.51

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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.