Home / 204,740.40-306,782.55-129,726.30

Finding the Fourth Proportional to 204,740.40, 306,782.55 and 129,726.30

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Solution

The fourth proportional to 204,740.40, 306,782.55 and 129,726.30 is: 194,381.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,740.40 : 306,782.55 = 129,726.30 : x
  2. Step 2: Convert to fraction form
    204,740.40/306,782.55 = 129,726.30/x
  3. Step 3: Cross multiply
    204,740.40x = 306,782.55 × 129,726.30
  4. Step 4: Simplify right side
    204,740.40x = 39,797,765,116.07
  5. Step 5: Solve for x
    x = 39,797,765,116.07/204,740.40
  6. Step 6: Final answer
    x = 194,381.59

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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.