Home / 403,703.12-557,107.61-222,410.81

Finding the Fourth Proportional to 403,703.12, 557,107.61 and 222,410.81

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Solution

The fourth proportional to 403,703.12, 557,107.61 and 222,410.81 is: 306,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,703.12 : 557,107.61 = 222,410.81 : x
  2. Step 2: Convert to fraction form
    403,703.12/557,107.61 = 222,410.81/x
  3. Step 3: Cross multiply
    403,703.12x = 557,107.61 × 222,410.81
  4. Step 4: Simplify right side
    403,703.12x = 123,906,755,077.98
  5. Step 5: Solve for x
    x = 123,906,755,077.98/403,703.12
  6. Step 6: Final answer
    x = 306,925.43

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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.