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Finding the Fourth Proportional to 173,218.60, 260,087.10 and 120,860.20

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Solution

The fourth proportional to 173,218.60, 260,087.10 and 120,860.20 is: 181,471.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,218.60 : 260,087.10 = 120,860.20 : x
  2. Step 2: Convert to fraction form
    173,218.60/260,087.10 = 120,860.20/x
  3. Step 3: Cross multiply
    173,218.60x = 260,087.10 × 120,860.20
  4. Step 4: Simplify right side
    173,218.60x = 31,434,178,923.42
  5. Step 5: Solve for x
    x = 31,434,178,923.42/173,218.60
  6. Step 6: Final answer
    x = 181,471.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.