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Finding the Fourth Proportional to 487,199.42, 730,946.73 and 220,888.43

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Solution

The fourth proportional to 487,199.42, 730,946.73 and 220,888.43 is: 331,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,199.42 : 730,946.73 = 220,888.43 : x
  2. Step 2: Convert to fraction form
    487,199.42/730,946.73 = 220,888.43/x
  3. Step 3: Cross multiply
    487,199.42x = 730,946.73 × 220,888.43
  4. Step 4: Simplify right side
    487,199.42x = 161,457,675,603.33
  5. Step 5: Solve for x
    x = 161,457,675,603.33/487,199.42
  6. Step 6: Final answer
    x = 331,399.56

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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.