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Finding the Fourth Proportional to 203,017.68, 280,099.98 and 118,118.34

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Solution

The fourth proportional to 203,017.68, 280,099.98 and 118,118.34 is: 162,965.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,017.68 : 280,099.98 = 118,118.34 : x
  2. Step 2: Convert to fraction form
    203,017.68/280,099.98 = 118,118.34/x
  3. Step 3: Cross multiply
    203,017.68x = 280,099.98 × 118,118.34
  4. Step 4: Simplify right side
    203,017.68x = 33,084,944,671.63
  5. Step 5: Solve for x
    x = 33,084,944,671.63/203,017.68
  6. Step 6: Final answer
    x = 162,965.83

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1.5x scale

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.