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Finding the Fourth Proportional to 507,309.40, 760,996.94 and 170,336.44

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Solution

The fourth proportional to 507,309.40, 760,996.94 and 170,336.44 is: 255,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,309.40 : 760,996.94 = 170,336.44 : x
  2. Step 2: Convert to fraction form
    507,309.40/760,996.94 = 170,336.44/x
  3. Step 3: Cross multiply
    507,309.40x = 760,996.94 × 170,336.44
  4. Step 4: Simplify right side
    507,309.40x = 129,625,509,610.49
  5. Step 5: Solve for x
    x = 129,625,509,610.49/507,309.40
  6. Step 6: Final answer
    x = 255,515.69

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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.