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Finding the Fourth Proportional to 326,012.57, 488,977.27 and 126,196.23

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Solution

The fourth proportional to 326,012.57, 488,977.27 and 126,196.23 is: 189,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,012.57 : 488,977.27 = 126,196.23 : x
  2. Step 2: Convert to fraction form
    326,012.57/488,977.27 = 126,196.23/x
  3. Step 3: Cross multiply
    326,012.57x = 488,977.27 × 126,196.23
  4. Step 4: Simplify right side
    326,012.57x = 61,707,088,029.69
  5. Step 5: Solve for x
    x = 61,707,088,029.69/326,012.57
  6. Step 6: Final answer
    x = 189,278.25

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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.