Home / 204,319.80-306,370.35-85,857.30

Finding the Fourth Proportional to 204,319.80, 306,370.35 and 85,857.30

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Solution

The fourth proportional to 204,319.80, 306,370.35 and 85,857.30 is: 128,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,319.80 : 306,370.35 = 85,857.30 : x
  2. Step 2: Convert to fraction form
    204,319.80/306,370.35 = 85,857.30/x
  3. Step 3: Cross multiply
    204,319.80x = 306,370.35 × 85,857.30
  4. Step 4: Simplify right side
    204,319.80x = 26,304,131,051.06
  5. Step 5: Solve for x
    x = 26,304,131,051.06/204,319.80
  6. Step 6: Final answer
    x = 128,740.00

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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.