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Finding the Fourth Proportional to 331,585.65, 457,225.56 and 223,968.78

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Solution

The fourth proportional to 331,585.65, 457,225.56 and 223,968.78 is: 308,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,585.65 : 457,225.56 = 223,968.78 : x
  2. Step 2: Convert to fraction form
    331,585.65/457,225.56 = 223,968.78/x
  3. Step 3: Cross multiply
    331,585.65x = 457,225.56 × 223,968.78
  4. Step 4: Simplify right side
    331,585.65x = 102,404,250,858.02
  5. Step 5: Solve for x
    x = 102,404,250,858.02/331,585.65
  6. Step 6: Final answer
    x = 308,831.97

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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.