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Finding the Fourth Proportional to 371,563.20, 512,751.60 and 201,795.84

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Solution

The fourth proportional to 371,563.20, 512,751.60 and 201,795.84 is: 278,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,563.20 : 512,751.60 = 201,795.84 : x
  2. Step 2: Convert to fraction form
    371,563.20/512,751.60 = 201,795.84/x
  3. Step 3: Cross multiply
    371,563.20x = 512,751.60 × 201,795.84
  4. Step 4: Simplify right side
    371,563.20x = 103,471,139,833.34
  5. Step 5: Solve for x
    x = 103,471,139,833.34/371,563.20
  6. Step 6: Final answer
    x = 278,475.21

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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.