Home / 313,504.32-432,815.27-206,385.74

Finding the Fourth Proportional to 313,504.32, 432,815.27 and 206,385.74

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Solution

The fourth proportional to 313,504.32, 432,815.27 and 206,385.74 is: 284,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,504.32 : 432,815.27 = 206,385.74 : x
  2. Step 2: Convert to fraction form
    313,504.32/432,815.27 = 206,385.74/x
  3. Step 3: Cross multiply
    313,504.32x = 432,815.27 × 206,385.74
  4. Step 4: Simplify right side
    313,504.32x = 89,326,899,782.25
  5. Step 5: Solve for x
    x = 89,326,899,782.25/313,504.32
  6. Step 6: Final answer
    x = 284,930.36

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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.