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Finding the Fourth Proportional to 326,011.57, 488,975.77 and 126,195.23

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Solution

The fourth proportional to 326,011.57, 488,975.77 and 126,195.23 is: 189,276.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,011.57 : 488,975.77 = 126,195.23 : x
  2. Step 2: Convert to fraction form
    326,011.57/488,975.77 = 126,195.23/x
  3. Step 3: Cross multiply
    326,011.57x = 488,975.77 × 126,195.23
  4. Step 4: Simplify right side
    326,011.57x = 61,706,411,139.76
  5. Step 5: Solve for x
    x = 61,706,411,139.76/326,011.57
  6. Step 6: Final answer
    x = 189,276.75

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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.