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Finding the Fourth Proportional to 173,244.60, 259,478.10 and 142,140.60

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Solution

The fourth proportional to 173,244.60, 259,478.10 and 142,140.60 is: 212,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,244.60 : 259,478.10 = 142,140.60 : x
  2. Step 2: Convert to fraction form
    173,244.60/259,478.10 = 142,140.60/x
  3. Step 3: Cross multiply
    173,244.60x = 259,478.10 × 142,140.60
  4. Step 4: Simplify right side
    173,244.60x = 36,882,372,820.86
  5. Step 5: Solve for x
    x = 36,882,372,820.86/173,244.60
  6. Step 6: Final answer
    x = 212,891.90

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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.