Home / 279,582.20-419,373.30-69,220.14

Finding the Fourth Proportional to 279,582.20, 419,373.30 and 69,220.14

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Solution

The fourth proportional to 279,582.20, 419,373.30 and 69,220.14 is: 103,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,582.20 : 419,373.30 = 69,220.14 : x
  2. Step 2: Convert to fraction form
    279,582.20/419,373.30 = 69,220.14/x
  3. Step 3: Cross multiply
    279,582.20x = 419,373.30 × 69,220.14
  4. Step 4: Simplify right side
    279,582.20x = 29,029,078,538.26
  5. Step 5: Solve for x
    x = 29,029,078,538.26/279,582.20
  6. Step 6: Final answer
    x = 103,830.21

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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.