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Finding the Fourth Proportional to 178,593.90, 267,890.85 and 139,180.50

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Solution

The fourth proportional to 178,593.90, 267,890.85 and 139,180.50 is: 208,770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,593.90 : 267,890.85 = 139,180.50 : x
  2. Step 2: Convert to fraction form
    178,593.90/267,890.85 = 139,180.50/x
  3. Step 3: Cross multiply
    178,593.90x = 267,890.85 × 139,180.50
  4. Step 4: Simplify right side
    178,593.90x = 37,285,182,448.43
  5. Step 5: Solve for x
    x = 37,285,182,448.43/178,593.90
  6. Step 6: Final answer
    x = 208,770.75

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1.5x scale

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.