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Finding the Fourth Proportional to 406,533.43, 610,358.75 and 206,987.91

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Solution

The fourth proportional to 406,533.43, 610,358.75 and 206,987.91 is: 310,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,533.43 : 610,358.75 = 206,987.91 : x
  2. Step 2: Convert to fraction form
    406,533.43/610,358.75 = 206,987.91/x
  3. Step 3: Cross multiply
    406,533.43x = 610,358.75 × 206,987.91
  4. Step 4: Simplify right side
    406,533.43x = 126,336,882,012.71
  5. Step 5: Solve for x
    x = 126,336,882,012.71/406,533.43
  6. Step 6: Final answer
    x = 310,766.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.