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Finding the Fourth Proportional to 203,295.03, 280,553.29 and 112,642.52

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Solution

The fourth proportional to 203,295.03, 280,553.29 and 112,642.52 is: 155,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,295.03 : 280,553.29 = 112,642.52 : x
  2. Step 2: Convert to fraction form
    203,295.03/280,553.29 = 112,642.52/x
  3. Step 3: Cross multiply
    203,295.03x = 280,553.29 × 112,642.52
  4. Step 4: Simplify right side
    203,295.03x = 31,602,229,579.89
  5. Step 5: Solve for x
    x = 31,602,229,579.89/203,295.03
  6. Step 6: Final answer
    x = 155,450.08

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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.