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Finding the Fourth Proportional to 309,190.80, 463,596.66 and 131,596.68

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Solution

The fourth proportional to 309,190.80, 463,596.66 and 131,596.68 is: 197,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,190.80 : 463,596.66 = 131,596.68 : x
  2. Step 2: Convert to fraction form
    309,190.80/463,596.66 = 131,596.68/x
  3. Step 3: Cross multiply
    309,190.80x = 463,596.66 × 131,596.68
  4. Step 4: Simplify right side
    309,190.80x = 61,007,781,315.09
  5. Step 5: Solve for x
    x = 61,007,781,315.09/309,190.80
  6. Step 6: Final answer
    x = 197,314.35

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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.