Home / 376,131.12-518,924.73-247,139.07

Finding the Fourth Proportional to 376,131.12, 518,924.73 and 247,139.07

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Solution

The fourth proportional to 376,131.12, 518,924.73 and 247,139.07 is: 340,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,131.12 : 518,924.73 = 247,139.07 : x
  2. Step 2: Convert to fraction form
    376,131.12/518,924.73 = 247,139.07/x
  3. Step 3: Cross multiply
    376,131.12x = 518,924.73 × 247,139.07
  4. Step 4: Simplify right side
    376,131.12x = 128,246,575,172.20
  5. Step 5: Solve for x
    x = 128,246,575,172.20/376,131.12
  6. Step 6: Final answer
    x = 340,962.42

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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.