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Finding the Fourth Proportional to 229,780.80, 317,260.80 and 166,406.40

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Solution

The fourth proportional to 229,780.80, 317,260.80 and 166,406.40 is: 229,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,780.80 : 317,260.80 = 166,406.40 : x
  2. Step 2: Convert to fraction form
    229,780.80/317,260.80 = 166,406.40/x
  3. Step 3: Cross multiply
    229,780.80x = 317,260.80 × 166,406.40
  4. Step 4: Simplify right side
    229,780.80x = 52,794,227,589.12
  5. Step 5: Solve for x
    x = 52,794,227,589.12/229,780.80
  6. Step 6: Final answer
    x = 229,759.09

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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.