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Finding the Fourth Proportional to 250,307.79, 345,449.52 and 142,893.96

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Solution

The fourth proportional to 250,307.79, 345,449.52 and 142,893.96 is: 197,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,307.79 : 345,449.52 = 142,893.96 : x
  2. Step 2: Convert to fraction form
    250,307.79/345,449.52 = 142,893.96/x
  3. Step 3: Cross multiply
    250,307.79x = 345,449.52 × 142,893.96
  4. Step 4: Simplify right side
    250,307.79x = 49,362,649,892.90
  5. Step 5: Solve for x
    x = 49,362,649,892.90/250,307.79
  6. Step 6: Final answer
    x = 197,207.81

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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.