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Finding the Fourth Proportional to 230,076.60, 317,505.06 and 129,474.60

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Solution

The fourth proportional to 230,076.60, 317,505.06 and 129,474.60 is: 178,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,076.60 : 317,505.06 = 129,474.60 : x
  2. Step 2: Convert to fraction form
    230,076.60/317,505.06 = 129,474.60/x
  3. Step 3: Cross multiply
    230,076.60x = 317,505.06 × 129,474.60
  4. Step 4: Simplify right side
    230,076.60x = 41,108,840,641.48
  5. Step 5: Solve for x
    x = 41,108,840,641.48/230,076.60
  6. Step 6: Final answer
    x = 178,674.58

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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.