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Finding the Fourth Proportional to 369,987.69, 510,584.61 and 200,221.82

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Solution

The fourth proportional to 369,987.69, 510,584.61 and 200,221.82 is: 276,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,987.69 : 510,584.61 = 200,221.82 : x
  2. Step 2: Convert to fraction form
    369,987.69/510,584.61 = 200,221.82/x
  3. Step 3: Cross multiply
    369,987.69x = 510,584.61 × 200,221.82
  4. Step 4: Simplify right side
    369,987.69x = 102,230,179,990.79
  5. Step 5: Solve for x
    x = 102,230,179,990.79/369,987.69
  6. Step 6: Final answer
    x = 276,306.97

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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.