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Finding the Fourth Proportional to 342,342.68, 513,513.60 and 131,832.98

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Solution

The fourth proportional to 342,342.68, 513,513.60 and 131,832.98 is: 197,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,342.68 : 513,513.60 = 131,832.98 : x
  2. Step 2: Convert to fraction form
    342,342.68/513,513.60 = 131,832.98/x
  3. Step 3: Cross multiply
    342,342.68x = 513,513.60 × 131,832.98
  4. Step 4: Simplify right side
    342,342.68x = 67,698,028,158.53
  5. Step 5: Solve for x
    x = 67,698,028,158.53/342,342.68
  6. Step 6: Final answer
    x = 197,749.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.