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Finding the Fourth Proportional to 203,018.25, 280,100.76 and 118,118.91

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Solution

The fourth proportional to 203,018.25, 280,100.76 and 118,118.91 is: 162,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,018.25 : 280,100.76 = 118,118.91 : x
  2. Step 2: Convert to fraction form
    203,018.25/280,100.76 = 118,118.91/x
  3. Step 3: Cross multiply
    203,018.25x = 280,100.76 × 118,118.91
  4. Step 4: Simplify right side
    203,018.25x = 33,085,196,461.37
  5. Step 5: Solve for x
    x = 33,085,196,461.37/203,018.25
  6. Step 6: Final answer
    x = 162,966.61

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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.