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Finding the Fourth Proportional to 659,059.20, 988,588.80 and 238,348.80

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Solution

The fourth proportional to 659,059.20, 988,588.80 and 238,348.80 is: 357,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,059.20 : 988,588.80 = 238,348.80 : x
  2. Step 2: Convert to fraction form
    659,059.20/988,588.80 = 238,348.80/x
  3. Step 3: Cross multiply
    659,059.20x = 988,588.80 × 238,348.80
  4. Step 4: Simplify right side
    659,059.20x = 235,628,954,173.44
  5. Step 5: Solve for x
    x = 235,628,954,173.44/659,059.20
  6. Step 6: Final answer
    x = 357,523.20

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Similar ratio
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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.