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Finding the Fourth Proportional to 279,606.23, 419,412.08 and 79,925.23

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Solution

The fourth proportional to 279,606.23, 419,412.08 and 79,925.23 is: 119,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,606.23 : 419,412.08 = 79,925.23 : x
  2. Step 2: Convert to fraction form
    279,606.23/419,412.08 = 79,925.23/x
  3. Step 3: Cross multiply
    279,606.23x = 419,412.08 × 79,925.23
  4. Step 4: Simplify right side
    279,606.23x = 33,521,607,233.28
  5. Step 5: Solve for x
    x = 33,521,607,233.28/279,606.23
  6. Step 6: Final answer
    x = 119,888.63

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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.