Home / 279,943.26-419,828.76-80,210.13

Finding the Fourth Proportional to 279,943.26, 419,828.76 and 80,210.13

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Solution

The fourth proportional to 279,943.26, 419,828.76 and 80,210.13 is: 120,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,943.26 : 419,828.76 = 80,210.13 : x
  2. Step 2: Convert to fraction form
    279,943.26/419,828.76 = 80,210.13/x
  3. Step 3: Cross multiply
    279,943.26x = 419,828.76 × 80,210.13
  4. Step 4: Simplify right side
    279,943.26x = 33,674,519,417.34
  5. Step 5: Solve for x
    x = 33,674,519,417.34/279,943.26
  6. Step 6: Final answer
    x = 120,290.52

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1.5x scale

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.