Home / 304,962.99-420,865.11-169,011.78

Finding the Fourth Proportional to 304,962.99, 420,865.11 and 169,011.78

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Solution

The fourth proportional to 304,962.99, 420,865.11 and 169,011.78 is: 233,245.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,962.99 : 420,865.11 = 169,011.78 : x
  2. Step 2: Convert to fraction form
    304,962.99/420,865.11 = 169,011.78/x
  3. Step 3: Cross multiply
    304,962.99x = 420,865.11 × 169,011.78
  4. Step 4: Simplify right side
    304,962.99x = 71,131,161,381.00
  5. Step 5: Solve for x
    x = 71,131,161,381.00/304,962.99
  6. Step 6: Final answer
    x = 233,245.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.