Home / 340,634.10-511,011.36-140,842.53

Finding the Fourth Proportional to 340,634.10, 511,011.36 and 140,842.53

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Solution

The fourth proportional to 340,634.10, 511,011.36 and 140,842.53 is: 211,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,634.10 : 511,011.36 = 140,842.53 : x
  2. Step 2: Convert to fraction form
    340,634.10/511,011.36 = 140,842.53/x
  3. Step 3: Cross multiply
    340,634.10x = 511,011.36 × 140,842.53
  4. Step 4: Simplify right side
    340,634.10x = 71,972,132,801.14
  5. Step 5: Solve for x
    x = 71,972,132,801.14/340,634.10
  6. Step 6: Final answer
    x = 211,288.69

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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.