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Finding the Fourth Proportional to 266,979.60, 400,469.40 and 162,003.60

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Solution

The fourth proportional to 266,979.60, 400,469.40 and 162,003.60 is: 243,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,979.60 : 400,469.40 = 162,003.60 : x
  2. Step 2: Convert to fraction form
    266,979.60/400,469.40 = 162,003.60/x
  3. Step 3: Cross multiply
    266,979.60x = 400,469.40 × 162,003.60
  4. Step 4: Simplify right side
    266,979.60x = 64,877,484,489.84
  5. Step 5: Solve for x
    x = 64,877,484,489.84/266,979.60
  6. Step 6: Final answer
    x = 243,005.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.