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Finding the Fourth Proportional to 251,978.40, 377,967.60 and 167,997.60

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Solution

The fourth proportional to 251,978.40, 377,967.60 and 167,997.60 is: 251,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,978.40 : 377,967.60 = 167,997.60 : x
  2. Step 2: Convert to fraction form
    251,978.40/377,967.60 = 167,997.60/x
  3. Step 3: Cross multiply
    251,978.40x = 377,967.60 × 167,997.60
  4. Step 4: Simplify right side
    251,978.40x = 63,497,649,677.76
  5. Step 5: Solve for x
    x = 63,497,649,677.76/251,978.40
  6. Step 6: Final answer
    x = 251,996.40

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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.