Home / 405,006.14-558,902.66-221,242.48

Finding the Fourth Proportional to 405,006.14, 558,902.66 and 221,242.48

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Solution

The fourth proportional to 405,006.14, 558,902.66 and 221,242.48 is: 305,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,006.14 : 558,902.66 = 221,242.48 : x
  2. Step 2: Convert to fraction form
    405,006.14/558,902.66 = 221,242.48/x
  3. Step 3: Cross multiply
    405,006.14x = 558,902.66 × 221,242.48
  4. Step 4: Simplify right side
    405,006.14x = 123,653,008,073.53
  5. Step 5: Solve for x
    x = 123,653,008,073.53/405,006.14
  6. Step 6: Final answer
    x = 305,311.44

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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.