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Finding the Fourth Proportional to 255,761.64, 352,942.96 and 141,045.12

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Solution

The fourth proportional to 255,761.64, 352,942.96 and 141,045.12 is: 194,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,761.64 : 352,942.96 = 141,045.12 : x
  2. Step 2: Convert to fraction form
    255,761.64/352,942.96 = 141,045.12/x
  3. Step 3: Cross multiply
    255,761.64x = 352,942.96 × 141,045.12
  4. Step 4: Simplify right side
    255,761.64x = 49,780,882,146.36
  5. Step 5: Solve for x
    x = 49,780,882,146.36/255,761.64
  6. Step 6: Final answer
    x = 194,637.80

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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.