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Finding the Fourth Proportional to 250,469.64, 345,683.50 and 155,007.08

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Solution

The fourth proportional to 250,469.64, 345,683.50 and 155,007.08 is: 213,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,469.64 : 345,683.50 = 155,007.08 : x
  2. Step 2: Convert to fraction form
    250,469.64/345,683.50 = 155,007.08/x
  3. Step 3: Cross multiply
    250,469.64x = 345,683.50 × 155,007.08
  4. Step 4: Simplify right side
    250,469.64x = 53,583,389,939.18
  5. Step 5: Solve for x
    x = 53,583,389,939.18/250,469.64
  6. Step 6: Final answer
    x = 213,931.68

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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.