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Finding the Fourth Proportional to 372,821.58, 514,499.73 and 203,055.69

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Solution

The fourth proportional to 372,821.58, 514,499.73 and 203,055.69 is: 280,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,821.58 : 514,499.73 = 203,055.69 : x
  2. Step 2: Convert to fraction form
    372,821.58/514,499.73 = 203,055.69/x
  3. Step 3: Cross multiply
    372,821.58x = 514,499.73 × 203,055.69
  4. Step 4: Simplify right side
    372,821.58x = 104,472,097,679.96
  5. Step 5: Solve for x
    x = 104,472,097,679.96/372,821.58
  6. Step 6: Final answer
    x = 280,220.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.