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Finding the Fourth Proportional to 173,678.20, 259,739.70 and 145,684.60

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Solution

The fourth proportional to 173,678.20, 259,739.70 and 145,684.60 is: 217,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,678.20 : 259,739.70 = 145,684.60 : x
  2. Step 2: Convert to fraction form
    173,678.20/259,739.70 = 145,684.60/x
  3. Step 3: Cross multiply
    173,678.20x = 259,739.70 × 145,684.60
  4. Step 4: Simplify right side
    173,678.20x = 37,840,074,298.62
  5. Step 5: Solve for x
    x = 37,840,074,298.62/173,678.20
  6. Step 6: Final answer
    x = 217,874.63

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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.