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Finding the Fourth Proportional to 370,808.69, 511,726.77 and 209,660.27

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Solution

The fourth proportional to 370,808.69, 511,726.77 and 209,660.27 is: 289,337.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,808.69 : 511,726.77 = 209,660.27 : x
  2. Step 2: Convert to fraction form
    370,808.69/511,726.77 = 209,660.27/x
  3. Step 3: Cross multiply
    370,808.69x = 511,726.77 × 209,660.27
  4. Step 4: Simplify right side
    370,808.69x = 107,288,770,205.79
  5. Step 5: Solve for x
    x = 107,288,770,205.79/370,808.69
  6. Step 6: Final answer
    x = 289,337.26

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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.