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Finding the Fourth Proportional to 203,479.98, 280,797.04 and 112,835.66

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Solution

The fourth proportional to 203,479.98, 280,797.04 and 112,835.66 is: 155,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,479.98 : 280,797.04 = 112,835.66 : x
  2. Step 2: Convert to fraction form
    203,479.98/280,797.04 = 112,835.66/x
  3. Step 3: Cross multiply
    203,479.98x = 280,797.04 × 112,835.66
  4. Step 4: Simplify right side
    203,479.98x = 31,683,917,648.37
  5. Step 5: Solve for x
    x = 31,683,917,648.37/203,479.98
  6. Step 6: Final answer
    x = 155,710.25

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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.