Home / 281,133.48-387,971.46-153,814.44

Finding the Fourth Proportional to 281,133.48, 387,971.46 and 153,814.44

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Solution

The fourth proportional to 281,133.48, 387,971.46 and 153,814.44 is: 212,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,133.48 : 387,971.46 = 153,814.44 : x
  2. Step 2: Convert to fraction form
    281,133.48/387,971.46 = 153,814.44/x
  3. Step 3: Cross multiply
    281,133.48x = 387,971.46 × 153,814.44
  4. Step 4: Simplify right side
    281,133.48x = 59,675,612,855.88
  5. Step 5: Solve for x
    x = 59,675,612,855.88/281,133.48
  6. Step 6: Final answer
    x = 212,267.90

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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.