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Finding the Fourth Proportional to 371,268.77, 512,351.12 and 201,502.89

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Solution

The fourth proportional to 371,268.77, 512,351.12 and 201,502.89 is: 278,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,268.77 : 512,351.12 = 201,502.89 : x
  2. Step 2: Convert to fraction form
    371,268.77/512,351.12 = 201,502.89/x
  3. Step 3: Cross multiply
    371,268.77x = 512,351.12 × 201,502.89
  4. Step 4: Simplify right side
    371,268.77x = 103,240,231,878.49
  5. Step 5: Solve for x
    x = 103,240,231,878.49/371,268.77
  6. Step 6: Final answer
    x = 278,074.11

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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.