Home / 344,642.28-516,987.99-91,921.34

Finding the Fourth Proportional to 344,642.28, 516,987.99 and 91,921.34

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Solution

The fourth proportional to 344,642.28, 516,987.99 and 91,921.34 is: 137,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,642.28 : 516,987.99 = 91,921.34 : x
  2. Step 2: Convert to fraction form
    344,642.28/516,987.99 = 91,921.34/x
  3. Step 3: Cross multiply
    344,642.28x = 516,987.99 × 91,921.34
  4. Step 4: Simplify right side
    344,642.28x = 47,522,226,219.77
  5. Step 5: Solve for x
    x = 47,522,226,219.77/344,642.28
  6. Step 6: Final answer
    x = 137,888.56

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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.