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Finding the Fourth Proportional to 381,600, 572,400 and 118,944

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Solution

The fourth proportional to 381,600, 572,400 and 118,944 is: 178,416

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,600 : 572,400 = 118,944 : x
  2. Step 2: Convert to fraction form
    381,600/572,400 = 118,944/x
  3. Step 3: Cross multiply
    381,600x = 572,400 × 118,944
  4. Step 4: Simplify right side
    381,600x = 68,083,545,600
  5. Step 5: Solve for x
    x = 68,083,545,600/381,600
  6. Step 6: Final answer
    x = 178,416

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