Home / 339,641.28-468,707.10-212,391.36

Finding the Fourth Proportional to 339,641.28, 468,707.10 and 212,391.36

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Solution

The fourth proportional to 339,641.28, 468,707.10 and 212,391.36 is: 293,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,641.28 : 468,707.10 = 212,391.36 : x
  2. Step 2: Convert to fraction form
    339,641.28/468,707.10 = 212,391.36/x
  3. Step 3: Cross multiply
    339,641.28x = 468,707.10 × 212,391.36
  4. Step 4: Simplify right side
    339,641.28x = 99,549,338,410.66
  5. Step 5: Solve for x
    x = 99,549,338,410.66/339,641.28
  6. Step 6: Final answer
    x = 293,101.41

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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.