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Finding the Fourth Proportional to 201,960.10, 302,940.15 and 131,457.70

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Solution

The fourth proportional to 201,960.10, 302,940.15 and 131,457.70 is: 197,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,960.10 : 302,940.15 = 131,457.70 : x
  2. Step 2: Convert to fraction form
    201,960.10/302,940.15 = 131,457.70/x
  3. Step 3: Cross multiply
    201,960.10x = 302,940.15 × 131,457.70
  4. Step 4: Simplify right side
    201,960.10x = 39,823,815,356.66
  5. Step 5: Solve for x
    x = 39,823,815,356.66/201,960.10
  6. Step 6: Final answer
    x = 197,186.55

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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.