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Finding the Fourth Proportional to 230,287.56, 317,928.68 and 153,935.96

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Solution

The fourth proportional to 230,287.56, 317,928.68 and 153,935.96 is: 212,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,287.56 : 317,928.68 = 153,935.96 : x
  2. Step 2: Convert to fraction form
    230,287.56/317,928.68 = 153,935.96/x
  3. Step 3: Cross multiply
    230,287.56x = 317,928.68 × 153,935.96
  4. Step 4: Simplify right side
    230,287.56x = 48,940,656,573.62
  5. Step 5: Solve for x
    x = 48,940,656,573.62/230,287.56
  6. Step 6: Final answer
    x = 212,519.76

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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.