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Finding the Fourth Proportional to 606,228.91, 909,436.80 and 206,776.36

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Solution

The fourth proportional to 606,228.91, 909,436.80 and 206,776.36 is: 310,196.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,228.91 : 909,436.80 = 206,776.36 : x
  2. Step 2: Convert to fraction form
    606,228.91/909,436.80 = 206,776.36/x
  3. Step 3: Cross multiply
    606,228.91x = 909,436.80 × 206,776.36
  4. Step 4: Simplify right side
    606,228.91x = 188,050,031,154.05
  5. Step 5: Solve for x
    x = 188,050,031,154.05/606,228.91
  6. Step 6: Final answer
    x = 310,196.41

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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.