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Finding the Fourth Proportional to 371,189.40, 512,242.76 and 201,423.52

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Solution

The fourth proportional to 371,189.40, 512,242.76 and 201,423.52 is: 277,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,189.40 : 512,242.76 = 201,423.52 : x
  2. Step 2: Convert to fraction form
    371,189.40/512,242.76 = 201,423.52/x
  3. Step 3: Cross multiply
    371,189.40x = 512,242.76 × 201,423.52
  4. Step 4: Simplify right side
    371,189.40x = 103,177,739,813.72
  5. Step 5: Solve for x
    x = 103,177,739,813.72/371,189.40
  6. Step 6: Final answer
    x = 277,965.21

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