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Finding the Fourth Proportional to 507,536.73, 761,245.81 and 203,918.65

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Solution

The fourth proportional to 507,536.73, 761,245.81 and 203,918.65 is: 305,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,536.73 : 761,245.81 = 203,918.65 : x
  2. Step 2: Convert to fraction form
    507,536.73/761,245.81 = 203,918.65/x
  3. Step 3: Cross multiply
    507,536.73x = 761,245.81 × 203,918.65
  4. Step 4: Simplify right side
    507,536.73x = 155,232,215,480.45
  5. Step 5: Solve for x
    x = 155,232,215,480.45/507,536.73
  6. Step 6: Final answer
    x = 305,854.15

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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.