Home / 421,051.46-631,136.01-196,226.42

Finding the Fourth Proportional to 421,051.46, 631,136.01 and 196,226.42

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Solution

The fourth proportional to 421,051.46, 631,136.01 and 196,226.42 is: 294,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,051.46 : 631,136.01 = 196,226.42 : x
  2. Step 2: Convert to fraction form
    421,051.46/631,136.01 = 196,226.42/x
  3. Step 3: Cross multiply
    421,051.46x = 631,136.01 × 196,226.42
  4. Step 4: Simplify right side
    421,051.46x = 123,845,559,775.38
  5. Step 5: Solve for x
    x = 123,845,559,775.38/421,051.46
  6. Step 6: Final answer
    x = 294,134.02

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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.