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Finding the Fourth Proportional to 255,570.31, 352,689.41 and 140,853.07

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Solution

The fourth proportional to 255,570.31, 352,689.41 and 140,853.07 is: 194,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,570.31 : 352,689.41 = 140,853.07 : x
  2. Step 2: Convert to fraction form
    255,570.31/352,689.41 = 140,853.07/x
  3. Step 3: Cross multiply
    255,570.31x = 352,689.41 × 140,853.07
  4. Step 4: Simplify right side
    255,570.31x = 49,677,383,687.28
  5. Step 5: Solve for x
    x = 49,677,383,687.28/255,570.31
  6. Step 6: Final answer
    x = 194,378.54

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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.