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Finding the Fourth Proportional to 225,066.88, 310,670.52 and 129,611.60

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Solution

The fourth proportional to 225,066.88, 310,670.52 and 129,611.60 is: 178,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,066.88 : 310,670.52 = 129,611.60 : x
  2. Step 2: Convert to fraction form
    225,066.88/310,670.52 = 129,611.60/x
  3. Step 3: Cross multiply
    225,066.88x = 310,670.52 × 129,611.60
  4. Step 4: Simplify right side
    225,066.88x = 40,266,503,170.03
  5. Step 5: Solve for x
    x = 40,266,503,170.03/225,066.88
  6. Step 6: Final answer
    x = 178,909.06

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1.5x scale

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.