Home / 203,488.12-280,846.40-118,588.80

Finding the Fourth Proportional to 203,488.12, 280,846.40 and 118,588.80

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Solution

The fourth proportional to 203,488.12, 280,846.40 and 118,588.80 is: 163,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,488.12 : 280,846.40 = 118,588.80 : x
  2. Step 2: Convert to fraction form
    203,488.12/280,846.40 = 118,588.80/x
  3. Step 3: Cross multiply
    203,488.12x = 280,846.40 × 118,588.80
  4. Step 4: Simplify right side
    203,488.12x = 33,305,237,560.32
  5. Step 5: Solve for x
    x = 33,305,237,560.32/203,488.12
  6. Step 6: Final answer
    x = 163,671.66

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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.