Home / 279,292.29-418,610.36-129,215.59

Finding the Fourth Proportional to 279,292.29, 418,610.36 and 129,215.59

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Solution

The fourth proportional to 279,292.29, 418,610.36 and 129,215.59 is: 193,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,292.29 : 418,610.36 = 129,215.59 : x
  2. Step 2: Convert to fraction form
    279,292.29/418,610.36 = 129,215.59/x
  3. Step 3: Cross multiply
    279,292.29x = 418,610.36 × 129,215.59
  4. Step 4: Simplify right side
    279,292.29x = 54,090,984,647.51
  5. Step 5: Solve for x
    x = 54,090,984,647.51/279,292.29
  6. Step 6: Final answer
    x = 193,671.60

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1.5x scale

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.