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Finding the Fourth Proportional to 263,510.39, 363,644.47 and 142,651.69

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Solution

The fourth proportional to 263,510.39, 363,644.47 and 142,651.69 is: 196,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,510.39 : 363,644.47 = 142,651.69 : x
  2. Step 2: Convert to fraction form
    263,510.39/363,644.47 = 142,651.69/x
  3. Step 3: Cross multiply
    263,510.39x = 363,644.47 × 142,651.69
  4. Step 4: Simplify right side
    263,510.39x = 51,874,496,938.91
  5. Step 5: Solve for x
    x = 51,874,496,938.91/263,510.39
  6. Step 6: Final answer
    x = 196,859.40

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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.