Home / 279,583.29-419,073.30-137,263.05

Finding the Fourth Proportional to 279,583.29, 419,073.30 and 137,263.05

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Solution

The fourth proportional to 279,583.29, 419,073.30 and 137,263.05 is: 205,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,583.29 : 419,073.30 = 137,263.05 : x
  2. Step 2: Convert to fraction form
    279,583.29/419,073.30 = 137,263.05/x
  3. Step 3: Cross multiply
    279,583.29x = 419,073.30 × 137,263.05
  4. Step 4: Simplify right side
    279,583.29x = 57,523,279,331.57
  5. Step 5: Solve for x
    x = 57,523,279,331.57/279,583.29
  6. Step 6: Final answer
    x = 205,746.49

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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.