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Finding the Fourth Proportional to 250,356.96, 345,406.32 and 142,849.44

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Solution

The fourth proportional to 250,356.96, 345,406.32 and 142,849.44 is: 197,082.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,356.96 : 345,406.32 = 142,849.44 : x
  2. Step 2: Convert to fraction form
    250,356.96/345,406.32 = 142,849.44/x
  3. Step 3: Cross multiply
    250,356.96x = 345,406.32 × 142,849.44
  4. Step 4: Simplify right side
    250,356.96x = 49,341,099,384.46
  5. Step 5: Solve for x
    x = 49,341,099,384.46/250,356.96
  6. Step 6: Final answer
    x = 197,082.99

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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.