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Finding the Fourth Proportional to 174,626.40, 261,421.20 and 115,528.80

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Solution

The fourth proportional to 174,626.40, 261,421.20 and 115,528.80 is: 172,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,626.40 : 261,421.20 = 115,528.80 : x
  2. Step 2: Convert to fraction form
    174,626.40/261,421.20 = 115,528.80/x
  3. Step 3: Cross multiply
    174,626.40x = 261,421.20 × 115,528.80
  4. Step 4: Simplify right side
    174,626.40x = 30,201,677,530.56
  5. Step 5: Solve for x
    x = 30,201,677,530.56/174,626.40
  6. Step 6: Final answer
    x = 172,950.24

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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.