Home / 279,973.20-419,836.68-102,434.16

Finding the Fourth Proportional to 279,973.20, 419,836.68 and 102,434.16

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Solution

The fourth proportional to 279,973.20, 419,836.68 and 102,434.16 is: 153,606.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,973.20 : 419,836.68 = 102,434.16 : x
  2. Step 2: Convert to fraction form
    279,973.20/419,836.68 = 102,434.16/x
  3. Step 3: Cross multiply
    279,973.20x = 419,836.68 × 102,434.16
  4. Step 4: Simplify right side
    279,973.20x = 43,005,617,652.99
  5. Step 5: Solve for x
    x = 43,005,617,652.99/279,973.20
  6. Step 6: Final answer
    x = 153,606.19

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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.