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Finding the Fourth Proportional to 172,659.60, 259,572.60 and 146,998.80

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Solution

The fourth proportional to 172,659.60, 259,572.60 and 146,998.80 is: 220,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,659.60 : 259,572.60 = 146,998.80 : x
  2. Step 2: Convert to fraction form
    172,659.60/259,572.60 = 146,998.80/x
  3. Step 3: Cross multiply
    172,659.60x = 259,572.60 × 146,998.80
  4. Step 4: Simplify right side
    172,659.60x = 38,156,860,712.88
  5. Step 5: Solve for x
    x = 38,156,860,712.88/172,659.60
  6. Step 6: Final answer
    x = 220,994.72

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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.