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Finding the Fourth Proportional to 371,189.57, 512,242.92 and 201,423.69

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Solution

The fourth proportional to 371,189.57, 512,242.92 and 201,423.69 is: 277,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,189.57 : 512,242.92 = 201,423.69 : x
  2. Step 2: Convert to fraction form
    371,189.57/512,242.92 = 201,423.69/x
  3. Step 3: Cross multiply
    371,189.57x = 512,242.92 × 201,423.69
  4. Step 4: Simplify right side
    371,189.57x = 103,177,859,122.78
  5. Step 5: Solve for x
    x = 103,177,859,122.78/371,189.57
  6. Step 6: Final answer
    x = 277,965.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.