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Finding the Fourth Proportional to 371,259.43, 512,338.23 and 201,493.56

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Solution

The fourth proportional to 371,259.43, 512,338.23 and 201,493.56 is: 278,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,259.43 : 512,338.23 = 201,493.56 : x
  2. Step 2: Convert to fraction form
    371,259.43/512,338.23 = 201,493.56/x
  3. Step 3: Cross multiply
    371,259.43x = 512,338.23 × 201,493.56
  4. Step 4: Simplify right side
    371,259.43x = 103,232,851,209.93
  5. Step 5: Solve for x
    x = 103,232,851,209.93/371,259.43
  6. Step 6: Final answer
    x = 278,061.22

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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.