Home / 203,210.80-280,403.13-112,544.38

Finding the Fourth Proportional to 203,210.80, 280,403.13 and 112,544.38

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Solution

The fourth proportional to 203,210.80, 280,403.13 and 112,544.38 is: 155,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,210.80 : 280,403.13 = 112,544.38 : x
  2. Step 2: Convert to fraction form
    203,210.80/280,403.13 = 112,544.38/x
  3. Step 3: Cross multiply
    203,210.80x = 280,403.13 × 112,544.38
  4. Step 4: Simplify right side
    203,210.80x = 31,557,796,415.91
  5. Step 5: Solve for x
    x = 31,557,796,415.91/203,210.80
  6. Step 6: Final answer
    x = 155,295.86

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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.