Home / 279,522.80-419,457-113,312.24

Finding the Fourth Proportional to 279,522.80, 419,457 and 113,312.24

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Solution

The fourth proportional to 279,522.80, 419,457 and 113,312.24 is: 170,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,522.80 : 419,457 = 113,312.24 : x
  2. Step 2: Convert to fraction form
    279,522.80/419,457 = 113,312.24/x
  3. Step 3: Cross multiply
    279,522.80x = 419,457 × 113,312.24
  4. Step 4: Simplify right side
    279,522.80x = 47,529,612,253.68
  5. Step 5: Solve for x
    x = 47,529,612,253.68/279,522.80
  6. Step 6: Final answer
    x = 170,038.41

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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.