Home / 206,838.24-285,429.12-126,400.32

Finding the Fourth Proportional to 206,838.24, 285,429.12 and 126,400.32

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Solution

The fourth proportional to 206,838.24, 285,429.12 and 126,400.32 is: 174,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,838.24 : 285,429.12 = 126,400.32 : x
  2. Step 2: Convert to fraction form
    206,838.24/285,429.12 = 126,400.32/x
  3. Step 3: Cross multiply
    206,838.24x = 285,429.12 × 126,400.32
  4. Step 4: Simplify right side
    206,838.24x = 36,078,332,105.32
  5. Step 5: Solve for x
    x = 36,078,332,105.32/206,838.24
  6. Step 6: Final answer
    x = 174,427.77

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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.