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Finding the Fourth Proportional to 281,835, 389,136.42 and 181,407.96

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Solution

The fourth proportional to 281,835, 389,136.42 and 181,407.96 is: 250,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835 : 389,136.42 = 181,407.96 : x
  2. Step 2: Convert to fraction form
    281,835/389,136.42 = 181,407.96/x
  3. Step 3: Cross multiply
    281,835x = 389,136.42 × 181,407.96
  4. Step 4: Simplify right side
    281,835x = 70,592,444,113.90
  5. Step 5: Solve for x
    x = 70,592,444,113.90/281,835
  6. Step 6: Final answer
    x = 250,474.37

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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.