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Finding the Fourth Proportional to 250,313.78, 345,425.90 and 146,946.32

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Solution

The fourth proportional to 250,313.78, 345,425.90 and 146,946.32 is: 202,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,313.78 : 345,425.90 = 146,946.32 : x
  2. Step 2: Convert to fraction form
    250,313.78/345,425.90 = 146,946.32/x
  3. Step 3: Cross multiply
    250,313.78x = 345,425.90 × 146,946.32
  4. Step 4: Simplify right side
    250,313.78x = 50,759,062,651.35
  5. Step 5: Solve for x
    x = 50,759,062,651.35/250,313.78
  6. Step 6: Final answer
    x = 202,781.73

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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.