Home / 515,814.20-773,721.30-141,837.20

Finding the Fourth Proportional to 515,814.20, 773,721.30 and 141,837.20

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Solution

The fourth proportional to 515,814.20, 773,721.30 and 141,837.20 is: 212,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,814.20 : 773,721.30 = 141,837.20 : x
  2. Step 2: Convert to fraction form
    515,814.20/773,721.30 = 141,837.20/x
  3. Step 3: Cross multiply
    515,814.20x = 773,721.30 × 141,837.20
  4. Step 4: Simplify right side
    515,814.20x = 109,742,462,772.36
  5. Step 5: Solve for x
    x = 109,742,462,772.36/515,814.20
  6. Step 6: Final answer
    x = 212,755.80

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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.