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Finding the Fourth Proportional to 238,245, 328,788.82 and 142,749.64

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Solution

The fourth proportional to 238,245, 328,788.82 and 142,749.64 is: 197,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,245 : 328,788.82 = 142,749.64 : x
  2. Step 2: Convert to fraction form
    238,245/328,788.82 = 142,749.64/x
  3. Step 3: Cross multiply
    238,245x = 328,788.82 × 142,749.64
  4. Step 4: Simplify right side
    238,245x = 46,934,485,691.02
  5. Step 5: Solve for x
    x = 46,934,485,691.02/238,245
  6. Step 6: Final answer
    x = 197,000.93

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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.